2004 GMC Envoy Performance Exhaust Systems

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    • MagnaFlow® MagnaFlow Series Stainless Steel Cat-Back Exhaust System
      (0 reviews)
      # 1678722
      GMC Envoy 2004, MagnaFlow Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®. Muffler Sound: MODERATE. Exit Location: Dual Split Rear Exit. Exit Quantity: Dual. Finish: Stainless. Exhaust Inlet Connection Type: Bolt On....
      Made in the U.S.A.All Mandrel Bent Tubing
      $966.01
    • BBK® Tuned-Length Shorty™ Headers
      (1 reviews)
      # 55186850
      GMC Envoy XL / Envoy XUV 5.3L 2004, Tuned-Length Shorty™ Exhaust Headers by BBK®. System Type: Shorty. Primary Tubing Diameter: 1.75". Full length headers increase exhaust flow and provide optimal cylinder scavenging for improved...
      Dyno testing results show a typical increase of 15-20 horsepower at the rear wheelsDeveloped using CAD (Computer Aided Design) software
      $349.99 - $449.99
    • Flowmaster® Direct Fit Stainless Steel Federal Catalytic Converter with Ceramic Substrate
      (1 reviews)
      # 2154281
      GMC Envoy 2004, Direct Fit Stainless Steel Federal Catalytic Converter by Flowmaster®. Inlet Diameter: 2.5". Outlet Diameter: 2.5". Substrate Material: Ceramic. Inlet Connection Type: Flanged. Outlet Connection Type: Flanged. With...
      Exceed all federal emission standardsStainless Steel shells
      $240.80
    • MagnaFlow® Direct Fit California OBDII Catalytic Converter
      (0 reviews)
      # 57825470
      GMC Envoy with LEV2 LEV Specification 2004, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: Yes. Converter...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $774.23
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter
      (0 reviews)
      # 61588665
      GMC Envoy 4.2L 2004, Direct Fit Federal OEM Grade Catalytic Converter 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
      $308.44 - $331.40
    • MagnaFlow® Direct Fit Federal Standard Catalytic Converter
      (0 reviews)
      # 98136188
      GMC Envoy 4.2L 2004, Direct Fit Federal Standard Catalytic Converter by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter Configuration: Direct-Fit....
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $229.99 - $272.58
    • DynoMax® Direct Fit Stainless Steel Muffler
      (0 reviews)
      # 97657478
      GMC Envoy 2004, Direct Fit Muffler by DynoMax®. Muffler Body Length: 12". Muffler Body Width: 4". Muffler Body Height: 4". Muffler Body Material: Stainless Steel. Muffler Body Finish: Bare. Muffler Body Shape: Round. Muffler...
      Designed for a quieter exhaust soundCancels out sound waves to further reduce engine noise
      $119.45
    • DynoMax® VT™ Direct Fit Muffler
      (0 reviews)
      # 51847577
      GMC Envoy 2004, Direct Fit Muffler by DynoMax®. Muffler Series: VT™. Muffler Body Length: 20". Muffler Body Width: 9.75". Muffler Body Height: 4.5". Muffler Overall Length: 36". Muffler Body Material: Stainless Steel. Muffler...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueExclusive DynoMax Valve Technology delivers on-demand, drone-free performance and sound
      $253.65
    • DynoMax® Intermediate Pipe
      (0 reviews)
      # 51932126
      GMC Envoy 2004, Intermediate Pipe by DynoMax®. Material: Stainless Steel. Outlet Diameter: 3". With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to complete the exhaust...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      $42.92 - $53.66
    • DynoMax® Tail Pipe
      (0 reviews)
      # 51932132
      GMC Envoy 2004, Tail Pipe by DynoMax®. Material: Stainless Steel. Inlet Diameter: 2.5". Outlet Diameter: 2.5". With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      $54.63 - $65.36
    • DynoMax® Mounting Kit
      (0 reviews)
      # 52153790
      GMC Envoy 2004, Mounting Kit by DynoMax®. DynoMax has you covered with a full line of accessories and hardware needed to do the complete exhaust job, from clamps to hangers. These small yet essential parts are available in a broad...
      Designed to do the exhaust job quickly and easilyOE-style fit, design, and finish
      $32.84
    • Dorman® Exhaust Manifold
      (0 reviews)
      # 16499181
      GMC Envoy 2004, Exhaust Manifold by Dorman®. Package Quantity: 1. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct...
      Cast iron or stainless tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $123.94 - $124.45
    • Walker® Ultra™ Round Direct Fit Catalytic Converter
      (1 reviews)
      # 8743065
      GMC Envoy with California Emission / with Federal Emission 2004, Ultra™ Direct Fit Catalytic Converter by Walker®. Body Dimensions: 9" Length x 4.125" Width x 4.125" Height. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $190.69 - $207.61
    • Walker® Ultra™ Round Universal Fit Catalytic Converter
      (0 reviews)
      # 88069174
      GMC Envoy with California Emission / with Federal Emission 2004, Ultra™ Universal Fit Catalytic Converter by Walker®. Inlet Diameter 1: 2.5". Outlet Diameter: 2.5". Overall Length: 11.5". Body Dimensions: 10" Length x 4.375"...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $86.37
    • Bosal® Direct Fit Catalytic Converter
      (0 reviews)
      # 72352078
      GMC Envoy 2004, Direct Fit Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: No. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading...
      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
      $203.49 - $221.73
    • Eastern® ECO II Direct Fit Catalytic Converter
      (0 reviews)
      # 88867520
      GMC Envoy 2004, Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear. No Inlet Type...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $211.13 - $230.40
    • Eastern® ECO III Universal Fit Oval Catalytic Converter
      (0 reviews)
      # 100277987
      GMC Envoy / Envoy XL 4.2L 2004, Catalytic Converter by Eastern®. Catalytic Series: ECO III. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2.5". Outlet Diameter: 2.5"....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $80.10
    • Eastern® ECO II Universal Fit Oval Catalytic Converter
      (0 reviews)
      # 100277988
      GMC Envoy XL 5.3L 2004, Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2.5". Outlet Diameter: 2.5". No...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $64.60
    • DEC® Direct Fit Catalytic Converter
      (0 reviews)
      # 86069949
      GMC Envoy 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
      $273.00 - $922.60
    • Walker® Oval Resonator Assembly
      (1 reviews)
      # 35467647
      GMC Envoy 2004, Stainless Steel Aluminized Oval Resonator Assembly by Walker®. Inlet Diameter 1: 2.5". Outlet Diameter: 2.5". Overall Length: 58.87". Body Dimensions 1: 13" Length x 7" Width x 9" Height. Inlet / Outlet Quantity: 1...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $95.28
    • Walker® Quiet-Flow™ Oval Muffler
      (0 reviews)
      # 17739401
      GMC Envoy 2004, Quiet-Flow™ Stainless Steel Aluminized Oval Muffler by Walker®. Inlet Diameter 1: 2.5". Inlet Configuration: Center. Outlet Diameter: 2.5". Outlet Configuration: Offset. Inlet / Outlet Quantity: 1 Inlet / 1...
      $103.19 - $107.68
    • Walker® SoundFX™ Oval Direct Fit Muffler
      (0 reviews)
      # 18160842
      GMC Envoy 2004, SoundFX™ Stainless Steel Aluminized Oval Direct Fit Muffler by Walker®. Inlet Configuration: Center. Outlet Diameter: 2.5". Outlet Configuration: Offset. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Dimensions:...
      $78.91 - $85.49
    • AP Exhaust® Challenge Series Muffler
      (0 reviews)
      # 80139110
      GMC Envoy 2004, Challenge Series Muffler by AP Exhaust®. Body Shape: Oval. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest...
      Limited Lifetime Warranty backed by AP Exhaust Products100% aluminized components
      $68.79 - $100.96
    • AP Exhaust® MSL Maximum Direct Fit Muffler
      (0 reviews)
      # 80139113
      GMC Envoy 2004, MSL Maximum Direct Fit Muffler by AP Exhaust®. Body Shape: Oval. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the...
      Designed for a quiet ride100% aluminized components for longer life
      $48.82 - $60.59
    • AP Exhaust® Prebent Pipe
      (0 reviews)
      # 80186695
      GMC Envoy 2004, Prebent Pipe by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality. This AP Exhaust...
      100% aluminized pipes are constructed from heavy 14 and 16-gauge steelRe-aluminized weld seam to prevent corrosion
      $34.38 - $40.91
    • Walker® Insulator
      (1 reviews)
      # 18149845
      GMC Envoy XL / Envoy XUV 5.3L 2004, Insulator 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...
      Makes installation quick and easyOptimal OE-style fit and quality
      $8.37 - $9.77
    • Walker® U-Bolt Clamp
      (0 reviews)
      # 35467644
      GMC Envoy 2004, U-Bolt Clamp by Walker®. Diameter: 2.5". 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...
      Makes installation quick and easyOptimal OE-style fit and quality
      $2.43
    • Bosal® Exhaust Clamp
      (0 reviews)
      # 99393302
      GMC Envoy / Envoy XL / Envoy XUV 4.2L 2004, Exhaust Clamp by Bosal®. Location: Central Silencer to Rear Silencer. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $2.10
    • AP Exhaust® Exhaust Gaskets
      (0 reviews)
      # 80186702
      GMC Envoy 2004, Exhaust Gaskets by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality. This AP Exhaust...
      Made from first-rate materialsEnsures outstanding durability
      $10.00 - $11.56
    • AP Exhaust® Extra Heavy Duty Welded Saddle Clamp
      (0 reviews)
      # 80399682
      GMC Envoy 2004, Extra Heavy Duty Welded Saddle Clamp by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest...
      Made from first-rate materialsEnsures outstanding durability
      $2.38 - $3.98
    • Fel-Pro® Exhaust Manifold Gasket Set
      (0 reviews)
      # 19060052
      GMC Envoy / Envoy XL / Envoy XUV 4.2L 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $11.04
    • Walker® Donut Exhaust Gasket
      (0 reviews)
      # 35467641
      GMC Envoy 2004, High Temperature Graphite with Wire Mesh Core Donut Exhaust Gasket by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Thickness: 0.969". Port Dimensions: 2.516" Length x 2.516" Width.
      $10.88
    • Fel-Pro® Exhaust Pipe Flange Gasket
      (0 reviews)
      # 19066450
      GMC Envoy / Envoy XL / Envoy XUV 4.2L 2004, Exhaust Pipe Flange Gasket 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $8.82
    • Victor Reinz® Exhaust Manifold Gasket
      (0 reviews)
      # 24041184
      GMC Envoy 2004, Exhaust Manifold Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. Material: Multi-Layered Steel. This is an aftermarket part that replaces factory OE # MS96302, 12574615, 88 89 0561, 88890561, 8-88890-561-0....
      $9.67
    • Victor Reinz® Exhaust Pipe Flange Gasket
      (0 reviews)
      # 24042355
      GMC Envoy 2004, Exhaust Pipe Flange Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. Material: Graphite/Wire Mesh With Sleeve. This is an aftermarket part that replaces factory OE # 8-15037-539-0, 15167765, 15 16 7765,...
      $9.86
    • Mahle® Exhaust Flange Gasket
      (0 reviews)
      # 8554343
      GMC Envoy XL / Envoy XUV 5.3L 2004, Exhaust Flange Gasket by Mahle®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair,...
      $7.72 - $8.65
    • Dorman® Exhaust Manifold Hardware Kit
      (0 reviews)
      # 62536858
      GMC Envoy / Envoy XL / Envoy XUV 4.2L 2004, Exhaust Manifold Hardware Kit by Dorman®. Size: M8-1.25 x 30mm; Package Quantity: 1. This is an aftermarket part that replaces factory OE # 11518860, 11609481, 6506775-AA, 6507423-AA,...
      Cast iron or stainless tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $7.57 - $9.12
    • Dorman® Front Exhaust Flange Stud and Nut Kit
      (0 reviews)
      # 31659015
      GMC Envoy / Envoy XL / Envoy XUV 2004, Front Exhaust Flange Stud and Nut Kit by Dorman®. Size: M10-1.5 x 62mm; Package Quantity: 1; Package Type: Card. This is an aftermarket part that replaces factory OE # 10220453, 11589264,...
      Direct replacement for a proper fit every timeDurable steel construction
      $8.60
    • Taylor Cable® HTR Oval Collector Gasket (2.125"x1.375")
      (0 reviews)
      # 89466838
      GMC Envoy 2004, HTR Oval Collector Gasket (2.125"x1.375") by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $21.54
    • Taylor Cable® XX Carbon™ Oval Header Gasket (2.125"x1.375")
      (0 reviews)
      # 89466837
      GMC Envoy 2004, XX Carbon™ Oval Header Gasket (2.125"x1.375") by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed...
      Limited Lifetime Replacement WarrantyWithstands Long Term Exposure To Over 2000 Degrees
      $24.41
    • Taylor Cable® Graph Flex Oval Header Flange Gasket (2.125"x1.375")
      (0 reviews)
      # 89466836
      GMC Envoy 2004, Graph Flex Oval Header Flange Gasket (2.125"x1.375") by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed...
      Limited Lifetime Replacement WarrantyWithstands Long Term Exposure To Over 2000 Degrees
      $26.54
    • Taylor Cable® Seal-4-Good Oval Header Flange Gasket (2.125"x1.375")
      (0 reviews)
      # 89466835
      GMC Envoy 2004, Seal-4-Good Oval Header Flange Gasket (2.125"x1.375") by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed...
      Limited Lifetime Replacement WarrantyMade Of Dead Soft Aluminum
      $37.24
    • 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
      $254.65 - $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 Big Block™ Muffler
      (0 reviews)
      # 87169805
      Universal 50 Series Big Block™ Aluminized Steel Muffler by Flowmaster®. Muffler Series: 50 Series Big Block™. Muffler Body Finish: Gray. Muffler Body Shape: Oval. Muffler Body Material: Aluminized Steel. Muffler Type:...
      Mild to stock exterior exhaust toneMinimal interior resonance
      $183.77 - $197.77
    • 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




    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 GMC Envoy Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 39 reviews
    5 of 5
    CanAmMex® 00747-212 - Thunderbolt™ Hi-Polished Single Rolled Angled Oval Tip
    These appear to be of very good quality, good welds.
    JPosted by John (Enfield, CT) /
    Was this review helpful for you? Yes
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