2004 Lexus IS Performance Exhaust Systems

Change Vehicle
1 - 60 of 742 results
show:
sort by:
    • (0 reviews)
      # 20206589
      Lexus IS 2004, Street Series™ Stainless Steel Single Cat-Back Exhaust System with Single Straight Passenger Side Rear Exit by MagnaFlow®. Finish: Stainless. Exhaust Inlet Connection Type: Bolt On. Exhaust Pipe Material: Stainless...
      Moderate SoundDelivers More Horsepower
      $732.30
    • (1 review)
      # 70193127
      Lexus IS Base 2004, Carbon-Ti Series™ 304 SS Rear Section Exhaust System by HKS®. Exhaust Pipe Material: 304 SS. Exhaust Type: Rear Section. Main Piping Diameter: 2.4". Tip Inlet Diameter: 4.5". Professionally developed with a...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $590.59
    • (0 reviews)
      # 70193128
      Lexus IS Base 2004, Dragger II Series™ 304 SS Axle-Back Exhaust System by HKS®. Exhaust Pipe Material: 304 SS. Exhaust Type: Axle-Back. Main Piping Diameter: 2.4". Tip Inlet Diameter: 4.7". Professionally developed with a racer...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $363.44
    • (0 reviews)
      # 78719796
      Lexus IS Base 2004, Hi-Power Series™ 304 SS Rear Section Exhaust System by HKS®. Exhaust Pipe Material: 304 SS. Exhaust Type: Rear Section. Main Piping Diameter: 2.4". Tip Inlet Diameter: 4.5". Professionally developed with a...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $363.44
    • (0 reviews)
      # 70193125
      Lexus IS Base with SXE10 Chassis 2004, Silent Hi-Power Series™ 304 SS Axle-Back Exhaust System by HKS®. Exhaust Pipe Material: 304 SS. Exhaust Type: Axle-Back. Main Piping Diameter: 2.4". Tip Inlet Diameter: 4.7". Silent Hi-Power...
      The material is SUS304 for improvement of appearance and durability.Proven "Advantex* glass wool" (Continuous fiber glass wool).
      $582.33
    • (0 reviews)
      # 62612488
      Lexus IS 2004, N1™ Mild Steel Single Cat-Back Exhaust System by APEXi®. Exhaust Pipe Material: Mild Steel. Exhaust Type: Cat-Back. Main Piping Diameter: 2.36". The N1 series muffler has become a staple of the import tuning...
      Muffler is based on the "Original" WS (World Sport) Muffler Canister and TipIdeal for the daily driver car of an enthusiast
      $529.01
    • (0 reviews)
      # 132242849
      Lexus IS 2004, WS2 Mild Steel Single Cat-Back Exhaust System by APEXi®. Exhaust Pipe Material: Mild Steel. Exhaust Type: Cat-Back. Main Piping Diameter: 2.55". The WS Exhaust series is the A'PEX answer to the ultimate street...
      Designed to boost your vehicle's performanceProvides excellent low and mid range power without excessive noise
      $622.26
    • (0 reviews)
      # 206720649
      Lexus IS 2004, Medalion Concept G Cat-Back Exhaust System by Tanabe®. Tubing Diameter: 60 mm., Tip Outlet Diameter: 100 mm. Concept G is an all new motorsports-developed exhaust system that features high power benefits, while...
      Designed to boost your vehicle’s performanceEngineered to excel in quality and durability
      $560.50
    • (0 reviews)
      # 206721377
      Lexus IS 2004, Medalion Touring Cat-Back Exhaust System by Tanabe®. Tubing Diameter: 60 mm., Tip Outlet Diameter: 115 mm. The elegant, well defined appearance of Medalion Touring is mature, and matches the artistry of a tastefully...
      Designed to boost your vehicle’s performanceEngineered to excel in quality and durability
      $608.00
    • (0 reviews)
      # 231023373
      Lexus IS with LEV Specification / with LEV1 Specification 2004, Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $941.10
    • (0 reviews)
      # 22197135
      Lexus IS 2004, OEM Grade Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Series: OEM Grade. If your car needs replacement, install one that will get you through the smog...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $823.44
    • (0 reviews)
      # 22197050
      Lexus IS 2004, Standard Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Series: Standard. If your car needs replacement, install one that will get you through the smog check...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $666.54
    • (0 reviews)
      # 136720795
      Lexus IS 2004, Stainless Steel Catalytic Converter with Integrated Manifold by PaceSetter®. PaceSetter Direct-Fit Manifold Catalytic Converters are a direct replacement of original equipment and utilize mandrel-bent, tubular,...
      Manifold Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent stainless steel tubing for a low restriction tubular manifold design
      $362.98
    • (0 reviews)
      # 49707123
      Lexus IS 2004, Heavy Metal Catalytic Converter by MagnaFlow®. Catalytic Series: Heavy Metal. Converter Configuration: Universal Fit. Location: Rear. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $111.97
    • (0 reviews)
      # 22208547
      Lexus IS With LEV Specification / With LEV1 Specification 2004, OBDII Catalytic Converter by MagnaFlow®. Catalytic Series: OBDII. Converter Configuration: Direct Fit. Location: Rear. Converter Body Material: Stainless Steel....
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $555.64
    • (0 reviews)
      # 18315901
      Lexus IS 2004, OBDII Catalytic Converter by MagnaFlow®. Catalytic Series: OBDII. Converter Configuration: Universal Fit. Location: Rear. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material: Ceramic....
      $165.58 - $165.85
    • (0 reviews)
      # 22199069
      Lexus IS 2004, OEM Grade Catalytic Converter by MagnaFlow®. Catalytic Series: OEM Grade. Converter Configuration: Direct Fit. Location: Rear. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $496.63
    • (0 reviews)
      # 49707122
      Lexus IS 2004, OEM Grade Catalytic Converter by MagnaFlow®. Catalytic Series: OEM Grade. Converter Configuration: Universal Fit. Location: Rear. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $136.20
    • (0 reviews)
      # 22198460
      Lexus IS 2004, Standard Catalytic Converter by MagnaFlow®. Catalytic Series: Standard. Converter Configuration: Direct Fit. Location: Rear. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material: Ceramic....
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $346.89
    • (1 review)
      # 176957369
      Lexus IS 2004, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed with precision...
      Direct fit replacementIncludes all applicable flanges, hangers, and sensor fittings
      $36.83 - $467.55
    • (0 reviews)
      # 231023360
      Lexus IS 2004, Stainless Steel Natural Exhaust Manifold with Integrated Catalytic Converter by Dorman®. Includes: Exhaust Manifold, 1 Input Gasket, 1 Output Flange. Finish: Natural. Inlet Port Shape: Irregular. Material: Stainless...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      $437.97
    • (0 reviews)
      # 231023329
      Lexus IS 2004, Ultra™ Exhaust Manifold by Walker®. Carb Compliant: No. Catalytic Converter Overall Length: 33.25". Converter Configuration: Direct Fit. Series: Ultra™. Walker offers complete coverage: direct-fit mufflers,...
      Constructed to meet your vehicle’s specific emissions requirementsDesigned to meet EPA regulations
      $467.55
    • (0 reviews)
      # 20552142
      Lexus IS 2004, Exhaust Manifold with Integrated Catalytic Converter by Bosal®. Includes: Three O2 Sensor Ports. Includes: Three O2 Sensor Ports. Carb Compliant: No. Converter Configuration: Direct Fit. If you’re in need of a...
      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
    • (0 reviews)
      # 73906347
      Lexus IS 2004, ECO CARB Exhaust Manifold with Integrated Catalytic Converter by Eastern®. Includes: 2 Inlet Gaskets, 2 Outlet Gaskets. Series: ECO CARB. Overall Length: 34". If you need to replace your failed or damaged manifold,...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $617.37
    • (0 reviews)
      # 81060481
      Lexus IS 2004, Exhaust Manifold with Integrated Catalytic Converter by DEC®. CARB Compliant: No. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to...
      Direct fitMade from a heavy duty stainless steel outer shell
      $530.60 - $838.60
    • (0 reviews)
      # 231126588
      Lexus IS 2004, Exhaust Manifold with Integrated Catalytic Converter by DEC®. Carb Compliant: No. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to...
      Direct fitMade from a heavy duty stainless steel outer shell
      $530.60 - $1,015.97
    • (0 reviews)
      # 17743634
      Lexus IS 2004, Catalytic Converter by Walker®. Converter Configuration: Direct Fit. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material: Ceramic. Catalytic Converter Body Shape: Small Oval. Catalytic...
      Emission Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $201.98
    • (1 review)
      # 17730200
      Lexus IS 2004, Ultra™ Catalytic Converter by Walker®. Catalytic Series: Ultra™. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material: Ceramic. Catalytic...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $84.49
    • (0 reviews)
      # 86066611
      Lexus IS 2004, Standard Catalytic Converter by DEC®. Catalytic Series: Standard. Converter Configuration: Direct Fit. Location: Rear. Catalytic Converter Overall Length: 46". Pick out a catalytic converter by DEC and get your...
      Direct fitMade from a heavy duty stainless steel outer shell
      $263.06
    • (0 reviews)
      # 252992055
      Lexus IS 2004, Catalytic Converter by AP Exhaust®. Converter Configuration: Direct Fit. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material: Ceramic. Inlet Type A: 3 Bolt Welded Flange. Outlet Type A: 2...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $316.33 - $406.00
    • (0 reviews)
      # 252992058
      Lexus IS 2004, Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter Substrate Material: Ceramic. Catalytic Inlet Diameter: 2". Catalytic Outlet...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $107.20 - $134.80
    • (0 reviews)
      # 81771440
      Lexus IS 2004, Oxygen Sensor by Delphi®. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to develop the most...
      OE connectors and wire lengths within three inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $64.68 - $95.59
    • (0 reviews)
      # 44949834
      Lexus IS 2004, Oxygen Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $71.99 - $81.24
    • (0 reviews)
      # 24166011
      Lexus IS 2004, Premium Oxygen Sensor by Bosch®. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen Sensor from Bosch that is equally...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $53.43 - $86.67
    • (0 reviews)
      # 24166027
      Lexus IS 2004, Universal Fit Oxygen Sensor by Bosch®. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel efficiency and reducing harmful exhaust emissions. That's why checking for, and possibly...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $41.35 - $46.55
    • (0 reviews)
      # 21093848
      Lexus IS 2004, OE Connector Oxygen Sensor by Denso®. Heated. Screw Type. 4 Wires. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $57.48 - $77.93
    • (0 reviews)
      # 21093851
      Lexus IS 2004, Oxygen Sensor by Denso®. O.E. Quality Universal Replacement Sensor. Heated. Screw Type. 4 Wires, 11.77" / 29.90 cm Length. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $38.50
    • (0 reviews)
      # 22141109
      Lexus IS 2004, Oxygen Sensor by NTK®. OE Equivalent This product is designed to improve engine efficiency and fuel mileage, while reducing emissions and extending catalyst life. The oxygen sensor is made of premium quality material...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $72.33 - $87.58
    • (0 reviews)
      # 22844673
      Lexus IS 2004, Upstream Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $37.67 - $52.69
    • (0 reviews)
      # 18166279
      Lexus IS 2004, Aluminized Steel Round Resonator Assembly by Walker®. Muffler Body Material: Aluminized Steel. Muffler Body Height: 3". Muffler Body Width: 3". Muffler Body Shape: Round. Muffler Body Length: 16.5". Muffler Overall...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $64.39
    • (0 reviews)
      # 18163555
      Lexus IS 2004, Quiet-Flow™ Stainless Steel Oval Muffler Assembly by Walker®. Muffler Series: Quiet-Flow™. Muffler Body Material: Stainless Steel. Muffler Inlet Diameter: 2.125". Muffler Outlet Diameter: 2.5". Muffler Body...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $109.92
    • (0 reviews)
      # 123331957
      Lexus IS 2004, Stainless Steel Chrome Spout by Walker®. Tip Material: Stainless Steel. Tip Inlet Diameter: 3.625". Tip Length: 4.25". Tip Finish: Chrome. Overall Length: 4.25". Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet....
      Manufactured from Aluminized SteelHigh Durability
      $36.83
    • (1 review)
      # 123331959
      Lexus IS 2004, Spring Bolt Kit by Walker®. Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do...
      Makes installation quick and easyOptimal OE-style fit and quality
      $7.65
    • (0 reviews)
      # 231126602
      Lexus IS 2004, Exhaust Gasket by Bosal®. 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...
      $4.58 - $24.17
    • (0 reviews)
      # 231023354
      Lexus IS 2004, Exhaust Manifold Gasket by Genuine®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $18.36
    • (0 reviews)
      # 231153144
      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
      $9.90
    • (0 reviews)
      # 231023417
      Lexus IS 2004, Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to provide...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $16.34
    • (0 reviews)
      # 8714013
      Lexus IS 2004, Catalytic Converter Gasket by Nippon Reinz®. Location: Between Front Muffler and Front Catalytic Converter. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not...
      $6.44
    • (1 review)
      # 18140590
      Lexus IS 2004, Exhaust Gasket 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
      $3.10 - $13.26
    • (0 reviews)
      # 212096245
      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
    • (0 reviews)
      # 19073801
      Lexus IS 2004, Front Exhaust Pipe Flange Gasket by Fel-Pro®. Location: Exhaust Connector. 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....
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $4.00
    • (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...
      $3.34 - $9.84
    • (0 reviews)
      # 138475297
      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
    • (1 review)
      # 212067828
      Lexus IS 2004, Center to Rear Muffler Exhaust Installation Kit by Bosal®. Location: Between Center and Rear Muffler. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $15.55
    • (1 review)
      # 12205987
      Lexus IS 2004, N1 Style™ 304 SS Cat-Back Exhaust System with Driver Side Rear Exit by Spec-D®. Exhaust Pipe Material: 304 SS. Exit Location: Driver Side Rear Exit. Exhaust Type: Cat-Back. Main Piping Diameter: 2.5". Muffler...
      Made of high quality T-304 stainless steelMaximum performance which increases up to 15 horsepower
      $160.20
    • (0 reviews)
      # 91190027
      Lexus IS 2004, Revolution RS™ 304 SS Cat-Back Exhaust System by GReddy®. Exhaust Pipe Material: 304 SS. Exhaust Type: Cat-Back. Main Piping Diameter: 3". GReddy Revolution RS line named for the revolutionary approach to the...
      Aggressive street-styled exhaust systemFull polished Stainless-steel cat-back
      $617.50
    • (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
    • (0 reviews)
      # 266715024
      Universal Mild Steel Chrome Shielded Side Exhaust System by Patriot Exhaust®. Exhaust Pipe Material: Mild Steel. Main Piping Diameter: 2". Give your vehicle that custom look with our classic shielded side exhaust system. Large...
      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 - $294.31
    • (0 reviews)
      # mpn358949929
      Universal Chrome Plated Lake Pipe by Patriot Exhaust®. 1 Pair. Includes: Muffler, Brackets. Side Pipe made from Steel. Chrome Lake Pipes 63". Finish: Chrome Plated. Show quality chrome Lake Pipe 4 kits connect to headers or stock...
      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
      $339.21
    • (6 reviews)
      # 120105855
      Universal 200 Series Catalytic Converter by Flowmaster®. Catalytic Series: 200 Series. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter Body Shape: Round. Inlet-Outlet Connection...
      Exceed all federal emission standardsStainless Steel shells
      $116.53 - $204.95




    Guides & Articles

    • Performance Exhaust Systems
      Here's A 'Tip': Exhaust Tips Are An Easy Way To Dress Up Your Tailpipe
      Performance exhaust systems give you improvements in power output, sound levels, and appearance, all in one package. But let's face it: not everyone has the spare change to buy and bolt up one of these kits. So you soldier on with what you have. And that may be a tired-looking exhaust system that is still functional. You've spent all day washing and waxing the vehicle's paint and chrome to perfection, but no degree of elbow grease will make that tailpipe look better.
      May 17, 2016
    • 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.
      August 18, 2015
    • 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.
      August 18, 2015
    • 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?
      August 17, 2015
    • 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".
      April 17, 2015
    • 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.
      August 01, 2014

    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) / July 1, 2014
    2004 Lexus IS
    Was this review helpful for you? Yes
    Related 2004 Lexus IS Pages
    2004 Lexus IS Models
    SECURE SHOPPING

    All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only.
    It is neither inferred nor implied that any item sold by CARiD.com, is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.