2004 Lexus IS Performance Exhaust Systems

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    • MagnaFlow® Street Series Stainless Steel Cat-Back Exhaust System
      (0 reviews)
      # 20206589
      Lexus IS 2004, Street Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®. Muffler Sound: MODERATE. Exit Location: Single Straight Passenger Side Rear Exit. Exit Quantity: Single. Finish: Stainless. Exhaust Inlet...
      Moderate SoundDelivers More Horsepower
      $732.30
    • HKS® Carbon-Ti Series 304 SS Cat-Back Exhaust System
      (1 reviews)
      # 70193127
      Lexus IS Base 2004, Carbon-Ti Series 304 SS Cat-Back Exhaust System by HKS®. Tubing: 2.4". Tip Style: HP-Ti. Tip Size: 4.5". Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $590.59
    • HKS® Dragger II Series 304 SS Axle-Back Exhaust System
      (0 reviews)
      # 70193128
      Lexus IS Base 2004, Dragger II Series 304 SS Axle-Back Exhaust System by HKS®. Tubing: 2.4". Tip Style: DR. Tip Size: 4.7". Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $363.44
    • HKS® Hi-Power Series 304 SS Axle-Back Exhaust System
      (0 reviews)
      # 78719796
      Lexus IS Base 2004, Hi-Power Series 304 SS Axle-Back Exhaust System by HKS®. Tubing: 2.4". Tip Style: HP. Tip Size: 4.5". Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $363.44
    • HKS® Silent Hi-Power Series 304 SS Axle-Back Exhaust System
      (0 reviews)
      # 70193125
      Lexus IS Base With SXE10 Chassis 2004, Silent Hi-Power Series 304 SS Axle-Back Exhaust System by HKS®. Sound (Close): 92 dB. Sound (Idle): 68 dB. Tubing: 2.4". Tip Style: HP (TYPE-S). Tip Size: 4.7". Silent Hi-Power mufflers offer...
      The material is SUS304 for improvement of appearance and durability.Proven "Advantex* glass wool" (Continuous fiber glass wool).
      $582.33
    • Spec-D® N1 Style Cat-Back Exhaust System with Burnt Tip (2.5" Inlet)
      (1 reviews)
      # 12205987
      Lexus IS 2004, N1 Style Cat-Back Exhaust System with Burnt Tip (2.5" Inlet) by Spec-D®. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. The Spec-D system replaces your restrictive...
      Dramatically improved exhaust flow compared to restrictive stock systemImproved engine breathing enables increased power output for better performance
      $160.20
    • APEXi® N1 Exhaust System
      (0 reviews)
      # 62612488
      Lexus IS 2004, N1 Exhaust System by APEXi®. The N1 series muffler has become a staple of the import tuning industry. The N1 was the first of its kind to incorporate the classic angled muffler design that has became so familiar with...
      $529.01
    • APEXi® WS2 Exhaust System
      (0 reviews)
      # 79118308
      Lexus IS 2004, WS2 Exhaust System by APEXi®. The WS Exhaust series is the APEXi answer to the ultimate street muffler system with all around performance. The canister is made of the highest grade polished SUS304 stainless steel...
      $622.26
    • HKS® Stainless Steel Exhaust Manifold
      (0 reviews)
      # 70193132
      Lexus IS With 3S-GE Engine Non-US Model 2004, Stainless Steel Exhaust Manifold by HKS®. Size: 1.8" - 2" - 2.4". Style: 4-2-1. HKS Exhaust technology, which is know-how of long time development, targets to pull out 100% engine...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $826.00
    • MagnaFlow® Direct Fit California Front Catalytic Converter with Header
      (0 reviews)
      # 22208551
      Lexus IS with LEV1 LEV Specification 2004, Direct Fit California Catalytic Converter with Header by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location: Front. CARB...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $941.10
    • MagnaFlow® Direct Fit California OBDII Catalytic Converter
      (0 reviews)
      # 22208634
      Lexus IS with LEV1 LEV Specification 2004, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. Location: Rear. CARB Compliant: Yes. Converter Configuration: Direct-Fit. If your car needs replacement, install one that...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $555.47 - $555.64
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter with Header
      (0 reviews)
      # 22197135
      Lexus IS 2004, Direct Fit Federal OEM Grade Catalytic Converter with Header by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter Configuration:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $823.44
    • MagnaFlow® Direct Fit Federal OEM Grade Rear Catalytic Converter
      (0 reviews)
      # 22199069
      Lexus IS 2004, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location: Rear. CARB Compliant: No. Converter Configuration:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $496.63
    • MagnaFlow® Direct Fit Federal Standard Catalytic Converter with Header
      (0 reviews)
      # 22197050
      Lexus IS 2004, Direct Fit Federal Standard Catalytic Converter with Header by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter Configuration:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $666.54
    • MagnaFlow® Direct Fit Federal Standard Rear Catalytic Converter
      (0 reviews)
      # 22198460
      Lexus IS 2004, Direct Fit Federal Standard Catalytic Converter by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location: Rear. CARB Compliant: No. Converter Configuration:...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $346.89
    • Eastern® ECO CARB Direct Fit Front Manifold with Integrated Catalytic Converter
      (0 reviews)
      # 73906347
      Lexus IS Eng. Fam.: 4TYXV03.0VMD 2004, Front Manifold with Integrated Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $617.37
    • Eastern® ECO III Direct Fit Front Manifold with Integrated Catalytic Converter
      (0 reviews)
      # 17569397
      Lexus IS 2004, Front Manifold with Integrated Catalytic Converter by Eastern®. Catalytic Series: ECO III. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $444.09
    • Dorman® Exhaust Manifold with Integrated Catalytic Converter
      (0 reviews)
      # 84271570
      Lexus IS 2004, Exhaust Manifold with Integrated Catalytic Converter by Dorman®. Shape: Irregular; Material: Stainless; Package Quantity: 1; Package Type: Box; . This is an aftermarket part that replaces factory OE # 1714046080....
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      $472.64 - $532.31
    • Walker® Ultra™ Standard Ovals Direct Fit Manifold
      (0 reviews)
      # 88066393
      Lexus IS with Federal Emission 2004, Ultra™ Direct Fit Manifold by Walker®. Overall Length: 33.25". Body Dimensions: 10" Length x 6.125" Width x 4.25" Height. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: 4...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $494.91
    • Bosal® Direct Fit Manifold with Integrated Catalytic Converter
      (0 reviews)
      # 98836397
      Lexus IS 2004, Direct Fit Manifold with Integrated Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: No. Includes: Three O2 Sensor Ports. If you’re in need of a replacement catalytic converter,...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $430.54
    • DEC® Exhaust Manifold with Integrated Catalytic Converter
      (0 reviews)
      # 81060481
      Lexus IS 2004, Exhaust Manifold with Integrated Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a...
      Direct fitMade from a heavy duty stainless steel outer shell
      $530.60 - $557.20
    • Walker® Small Oval Direct Fit Catalytic Converter
      (0 reviews)
      # 17743634
      Lexus IS with Federal Emission 2004, Direct Fit Catalytic Converter by Walker®. Overall Length: 42". Body Dimensions: 10" Length x 6.125" Width x 4.25" Height. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: 3...
      Emission Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $195.74
    • Walker® Ultra™ Small Oval Universal Fit Catalytic Converter
      (1 reviews)
      # 88066394
      Lexus IS with Federal Emission 2004, Ultra™ Universal Fit Catalytic Converter by Walker®. Inlet Diameter 1: 2.5". Outlet Diameter: 2.5". Overall Length: 13.25". Body Dimensions: 10" Length x 6.125" Width x 4.25" Height. Inlet /...
      Emission Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $84.49
    • DEC® Direct Fit Catalytic Converter
      (0 reviews)
      # 86071572
      Lexus IS 2004, Direct Fit Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty stainless...
      Direct fitMade from a heavy duty stainless steel outer shell
      $256.20 - $977.20
    • Walker® Quiet-Flow™ Oval Muffler Assembly
      (0 reviews)
      # 18163555
      Lexus IS 2004, Quiet-Flow™ Aluminized Oval Muffler Assembly by Walker®. Inlet Diameter 1: 2.125". Inlet Configuration: Offset. Outlet Diameter: 2.5". Outlet Configuration: Offset. Overall Length: 47.25". Inlet / Outlet Quantity:...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $108.63
    • Walker® Round Resonator Assembly
      (0 reviews)
      # 18166279
      Lexus IS 2004, Aluminized Round Resonator Assembly by Walker®. Overall Length: 35". Body Dimensions 1: 16.5" Length x 3" Width x 3" Height. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Connection Type: 2 Bolt Welded Flange. Body...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $64.53
    • Walker® Chrome Spout
      (0 reviews)
      # 18174667
      Lexus IS 2004, Chrome Spout by Walker®. Inlet Diameter 1: 3.625". Overall Length: 4.25". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: Pipe Connection. Outlet Connection Type: Spout. Outside Inlet Diameter:...
      Manufactured from Aluminized SteelHigh Durability
      $37.73
    • Walker® Spring Bolt Kit
      (1 reviews)
      # 18175900
      Lexus IS 2004, Spring Bolt Kit by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the...
      Makes installation quick and easyOptimal OE-style fit and quality
      $7.44
    • Genuine® Exhaust Hanger
      (0 reviews)
      # 8819872
      Lexus IS 2004, Exhaust Hanger by Genuine®. Rear Muffler. Hanger Support. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and legal reasons, but...
      $35.79
    • Fel-Pro® Exhaust Manifold Gasket Set
      (0 reviews)
      # 19063763
      Lexus IS 2004, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $8.46
    • Walker® Exhaust Gasket
      (0 reviews)
      # 18140590
      Lexus IS 2004, Exhaust Gasket by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet.
      $3.15 - $13.26
    • Bosal® Exhaust Flange Gasket
      (0 reviews)
      # 72875150
      Lexus IS 2004, Exhaust Flange Gasket by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $3.56 - $7.86
    • Genuine® Exhaust Gasket
      (0 reviews)
      # 8819660
      Lexus IS 2004, Exhaust Gasket by Genuine®. Between Rear Muffler to Front Muffler. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and legal...
      $41.18
    • Genuine® Exhaust Manifold Gasket
      (0 reviews)
      # 8820231
      Lexus IS 2004, Exhaust Manifold Gasket by Genuine®. Location: Exhaust Manifold to Head. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $17.65
    • Nippon Reinz® Exhaust Gasket
      (0 reviews)
      # 8714013
      Lexus IS 2004, Exhaust Gasket by Nippon Reinz®. Between Front Muffler and Front Catalyst. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and...
      $6.26
    • Fel-Pro® Exhaust Pipe Flange Gasket
      (0 reviews)
      # 19073801
      Lexus IS 2004, Exhaust Pipe Flange Gasket by Fel-Pro®. 1-31/32" Inner Diameter and 2-35/64" Outer Diameter. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $4.08
    • HJS® Exhaust Gasket
      (0 reviews)
      # 51417079
      Lexus IS 2004, Exhaust Gasket by HJS®. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and legal reasons, but before you waste your time and...
      $3.17 - $9.67
    • Walker® Exhaust Nut
      (0 reviews)
      # 85225428
      Lexus IS 2004, Exhaust Nut by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $0.32
    • Bosal® Exhaust Installation Kit
      (1 reviews)
      # 99393332
      Lexus IS 2004, Exhaust Installation Kit by Bosal®. Location: Central to Rear Silencer. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $15.55
    • AJUSA® Exhaust Pipe Flange Gasket
      (0 reviews)
      # 97662781
      Lexus IS 2004, Exhaust Pipe Flange Gasket by AJUSA®. Gasket Material:Graphite. Position:Inlet. These gaskets seal components in the intake and exhaust systems of the vehicle such as the intake manifold, intake plenum, and exhaust...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $3.34
    • Patriot Exhaust® Steel Chrome Shielded Side Exhaust System
      (0 reviews)
      # 91560836
      Universal Steel Chrome Shielded Side Exhaust System by Patriot Exhaust®. Inlet Diameter: 2". Outlet Diameter: 3". Sold as a pair. Give your vehicle that custom look with our classic shielded side exhaust system. Large inlet and...
      Give your vehicle that custom look with our classic shielded side exhaust system with a show quality chrome finishLarge inlet and outlet pipes with low back pressure six-sided louvered core mufflers
      $255.92 - $296.58
    • Patriot Exhaust® 3.5" Chrome Lake Pipes (H1165)
      (0 reviews)
      # mpn358949929
      Universal 3 1/2" Chrome Lake Pipes by Patriot Exhaust®, Sold as a Pair. Includes Muffler, Brackets. Side Pipe made from Steel. Chrome Lake Pipes 63". Show quality chrome Lake Pipe 4 kits connect to headers or stock exhaust system...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $332.21
    • Stainless Works® 304 SS High-Flow Catalytic Converter
      (0 reviews)
      # 83115043
      Universal 304 SS High-Flow Catalytic Converter by Stainless Works®. CARB Compliant: No. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $184.50
    • Vibrant Performance® GESI® High Output Catalytic Converters
      (0 reviews)
      # 78902206
      Universal GESI® High Output Catalytic Converters by Vibrant Performance®. Vibrant Performance and Global Emissions Systems Inc. (GESi®) have teamed up to supply a series of OBD2 (1996 and newer) high flow Catalytic Converters...
      EPA certified for use on OBD2 vehicles (1996 and newer) in jurisdictionswhere the installation of Universal Catalytic Converters is still permitted
      $335.21 - $448.35
    • Vibrant Performance® High Output Catalytic Converters
      (0 reviews)
      # 78902217
      Universal High Output Catalytic Converters by Vibrant Performance®. Vibrant Performance Metal or Ceramic Core Catalytic Converters are made entirely of Stainless Steel and feature a Monolith that is far more durable and capable...
      T304 Stainless Steel ConstructionThese Converters are covered by a 5 year / 50,000 mile warranty
      $75.76 - $109.10
    • Dynatech® PowerCat Stainless Steel Catalytic Converter
      (0 reviews)
      # 84198005
      Universal PowerCat Stainless Steel Catalytic Converter by Dynatech®. 1 Piece. The Dynatech PowerCAT catalytic convertor uses the latest technology in catalytic convertor design. Utilizing a Premium Metallic Substrate internal...
      Premium metallic substrateSuperior strength and durability
      $174.99
    • Thunderbolt® Car Diesel Catalytic Converter
      (1 reviews)
      # 82989181
      Universal Car Diesel Catalytic Converter by Thunderbolt®. 4" Round x 11" Long. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $79.39
    • Thunderbolt® Oval Catalytic Converter
      (1 reviews)
      # 82989467
      Universal Oval Catalytic Converter by Thunderbolt®. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust products also help your...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $39.69 - $76.06
    • Thunderbolt® The Spun Formed Catalytic Converter
      (0 reviews)
      # 82989388
      Universal The Spun Formed Catalytic Converter by Thunderbolt®. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust products also...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $44.46 - $76.22
    • Thunderbolt® Truck Diesel Catalytic Converter
      (0 reviews)
      # 82989593
      Universal Truck Diesel Catalytic Converter by Thunderbolt®. 6" Round x 12" Long. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $183.83
    • Flowmaster® 10 Series Delta Force™ Single Chamber Muffler
      (0 reviews)
      # 87169729
      Universal 10 Series Delta Force™ Single Chamber Muffler by Flowmaster®. Muffler Series: 10 Series Delta Force™. Muffler Body Finish: Gray. Muffler Type: Chambered. The 10 Series Race mufflers are a compact lightweight single...
      Race Proven TechnologyNoticeable Sound Reduction Compared to Open Headers
      $92.92 - $151.28
    • Flowmaster® 30 Series Delta Force™ Diesel Muffler (54031-12)
      (0 reviews)
      # mpn875617
      Universal 30 Series Delta Force™ Aluminized Steel Diesel Muffler by Flowmaster®. Muffler Series: 30 Series Delta Force™. Muffler Sound: AGGRESSIVE. Muffler Body Finish: Gray. Muffler Body Shape: Oval. Muffler Body Material:...
      Durable fully welded 16 gauge aluminized steel - two chamber race mufflerGood decibel reduction over open headers
      $172.91
    • Flowmaster® 30 Series Delta Force™ Muffler
      (0 reviews)
      # 87169740
      Universal 30 Series Delta Force™ Aluminized Steel Muffler by Flowmaster®. Muffler Series: 30 Series Delta Force™. Muffler Body Finish: Gray. Muffler Body Shape: Oval. Muffler Body Material: Aluminized Steel. The Delta Force 30...
      Durable fully welded 16 gauge aluminized steel - two chamber race mufflerGood decibel reduction over open headers
      $158.34 - $275.60
    • Flowmaster® 40 Series Delta Flow™ Muffler
      (4 reviews)
      # 87169745
      Universal 40 Series Delta Flow™ Muffler by Flowmaster®. Muffler Series: 40 Series Delta Flow™. Muffler Sound: AGGRESSIVE. Muffler Body Finish: Gray. Muffler Body Length: 13". Muffler Body Width: 9.75". Muffler Body Height: 4"....
      The Quietest Option in the 40 Series Two Chamber LineLess Resonance than other 40 Series Mufflers
      $89.06 - $111.31
    • Flowmaster® 40 Series Delta Force™ Muffler
      (4 reviews)
      # 87169777
      Universal 40 Series Delta Force™ Muffler by Flowmaster®. Muffler Series: 40 Series Delta Force™. Muffler Body Shape: Oval. The Delta Force 40 series race mufflers utilize Flowmaster's patented Delta Flow technology and feature...
      Durable fully welded 16 gauge stainless steel - two chamber race mufflerGood decibel reduction over open headers
      $83.76 - $237.75
    • Flowmaster® 40 Series Muffler
      (1 reviews)
      # 87169792
      Universal 40 Series Muffler by Flowmaster®. Muffler Series: 40 Series. Muffler Body Shape: Oval. Muffler Type: Chambered. The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that...
      Durable fully welded 409 stainless steelAggressive Sound Exterior Exhaust Tone
      $83.76 - $165.34
    • Flowmaster® 50 Series Delta Flow™ Muffler
      (3 reviews)
      # 87169810
      Universal 50 Series Delta Flow™ Muffler by Flowmaster®. Muffler Series: 50 Series Delta Flow™. Muffler Body Finish: Gray. Muffler Body Length: 17". The three chamber design utilizes Flowmaster's patented Delta Flow technology...
      Moderate SoundMild interior resonance
      $100.93 - $124.27
    • Flowmaster® 50 Series Delta Force™ 409 Stainless Steel Muffler (8325508)
      (0 reviews)
      # mpn911540
      Universal 50 Series Delta Force™ 409 Stainless Steel Muffler by Flowmaster®. Muffler Series: 50 Series Delta Force™. Muffler Sound: AGGRESSIVE. Muffler Body Finish: Gray. Muffler Body Shape: Oval. Muffler Body Material: 409...
      Race proven patented Delta Flow technologyExcellent decibel reduction over open headers
      $127.67
    • Flowmaster® 50 Series HD Delta Flow™ Diesel Muffler (9530560)
      (1 reviews)
      # mpn864551
      Universal 50 Series HD Delta Flow™ Aluminized Steel Diesel Muffler by Flowmaster®. Muffler Series: 50 Series HD Delta Flow™. Muffler Sound: MODERATE. Muffler Body Finish: Gray. Muffler Body Shape: Oval. Muffler Body Material:...
      Mild Interior ResonanceBuilt for Quieting Big Displacement Engines
      $167.51
    • Flowmaster® 60 Series Delta Flow™ Muffler
      (1 reviews)
      # 87169842
      Universal 60 Series Delta Flow™ Aluminized Steel Muffler by Flowmaster®. Muffler Series: 60 Series Delta Flow™. Muffler Body Finish: Black. Muffler Body Shape: Oval. Muffler Body Material: Aluminized Steel. Muffler Overall...
      A Favorite With Import and Sport Compact OwnersBest When Matched for Four and Six Cylinder Engines
      $123.70 - $135.08




    Guides & Articles

    • Performance Exhaust Systems
      Are Headers Worth The Performance Improvement?
      Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
    • Performance Exhaust Systems
      Are X-pipes and H-pipes Better Than Straight Pipes on Dual Exhaust Systems?
      You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
    • Performance Exhaust Systems
      Power, Sound, Looks | Can I Have It All With a Cat-Back Exhaust System?
      It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
    • Bed Accessories
      Pickup Truck Cab And Bed Sizes Are Important When Selecting Accessories
      Americans love to have choices. Buying a dress shirt? Decide solid or stripe, short or long sleeve, cotton or poly blend, button or spread collar, regular fit, slim fit, or big & tall. How about a meal at your favorite steak house? Will it be porterhouse, T-bone, or sirloin? Cooked rare, medium-rare, or medium? With baked, mashed, or French fried potatoes? Thirsty for a fancy cup of coffee? Let's not even get started on options that let you end up with a "grande caramel macchiato with 1% low-fat milk, 2 Splendas, and an extra espresso shot".
    • Replacement Exhaust Parts
      Direct Fit vs. Universal Mufflers
      Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences between these two styles so you can make a more informed purchase.

    Popular Products

    2004 Lexus IS Performance Exhaust Systems Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    Great Sound For A Great Price
    I was able to install this with little to no experience on exhausts, sounds great, loud but not annoying. Makes you want to go a bit faster at times but with a new exhaust comes better fuel economy.
    EPosted by Edgar (Round Rock, TX) /
    2004 Lexus IS
    Was this review helpful for you? Yes
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