2003 GMC Envoy Exhaust Headers & Manifolds
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ATP®Cast Iron Natural Exhaust ManifoldGMC Envoy / Envoy XL 4.2L 2003, Natural Cast Iron Exhaust Manifold by ATP®. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed off of the...Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage$136.05 - TRQ®Exhaust ManifoldGMC Envoy XL 5.3L 2003, Exhaust Manifold by TRQ®. Position: Passenger Side. Made with quality in mind, this high-grade TRQ exhaust manifold fits right away without any trouble. It is built using the latest technology and innovation to...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$112.05$117.95Save $5.90 (5%)
- Dorman®Cast Iron Natural Exhaust ManifoldGMC Envoy 2003, Natural Cast Iron Exhaust Manifold by Dorman®. Color: Natural. Header Coating: Uncoated. This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on...Ideal replacement - this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehiclesReliable construction - durable materials resist warping, cracking and leaking for long-lasting performance$130.52 - $143.04
- Dorman®Exhaust Manifold Hardware KitGMC Envoy 2003, Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your vehicle running its best.Direct replacement for a proper fitBuilt to Last$9.04 - $15.60
- BBK®Tuned Length Steel Short Tube Exhaust HeadersGMC Envoy XL 5.3L 2003, Tuned Length Steel Short Tube Exhaust Headers by BBK®. Primary Tubing Diameter: 1.75". Header Style: Short Tube. Gain 12-15 dyno-proven horsepower at the rear wheels just by bolting on a set of BBK long tube,...Developed using CAD (Computer Aided Design) softwareCNC mandrel bent tubes to ensure consistent diameter throughout the tubes$499.99 - $549.99
- TRQ®Exhaust Manifold KitGMC Envoy 2003, Exhaust Manifold Kit by TRQ®. Designed to fit and function exactly as the part it is replacing, this top-grade TRQ exhaust manifold kit will keep your vehicle in its best condition. Made using superior components, it...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$139.60 - $170.95$146.95 - $179.95Save 5%
- Davico®Exhaust Manifold with Integrated Catalytic ConverterGMC Envoy 2003, Exhaust Manifold with Integrated Catalytic Converter by Davico®. This product by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job,...Helps your vehicle emit harmless gasesDirect OEM replacement$280.55
- SKP®Exhaust ManifoldGMC Envoy 2003, Exhaust Manifold by SKP®. Put your vehicle back to its original condition with this top-notch transfer case component designed to efficiently transmit the engine power to both the front and rear axles through...Designed to send the engine power to both the front and rear axlesDirect-fit replacement for your overworked, out-of-shape transfer case$80.70 - $112.26
- ACDelco®Genuine GM Parts™ Exhaust ManifoldGMC Envoy 2003, Genuine GM Parts™ Exhaust Manifold by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$142.53 - $197.26
- Stage 8®Steel Nickel plated Header Locking Bolt KitGMC Envoy XL 5.3L 2003, Steel Nickel plated Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the...Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system$75.82
- ACDelco®Genuine GM Parts™ Exhaust Manifold GasketGMC Envoy XL 5.3L 2003, Genuine GM Parts™ Exhaust Manifold Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$19.73
- Fel-Pro®Exhaust Manifold Gasket SetGMC Envoy 2003, 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 meet...Ensures reliable sealing performanceMade using advanced technologies and molded rubber chemistry$11.09 - $14.15
- Remflex®Exhaust Header GasketGMC Envoy 2003, Exhaust Header Gasket by Remflex®. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications. Whether you have an old pick-up that needs a manifold gasket or a race car...Designed to crush 50%This allows them to fill gaps in the flange surface up to 1/16"$13.43 - $31.83
- Apex Auto®Exhaust Manifold Gasket SetGMC Envoy 2003, Exhaust Manifold Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$7.76 - $8.47
- Elring®Exhaust Manifold GasketGMC Envoy XL 5.3L 2003, Exhaust Manifold Gasket by Elring®. For professional repairs, place your trust in gaskets, gasket sets and service parts from Elring - the reliable and experienced supplier of spare parts to original equipment...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$10.91
- Mahle®Exhaust Manifold GasketGMC Envoy 2003, Exhaust Manifold Gasket by Mahle®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...High quality at an affordable priceExpertly made from premium materials$9.75 - $15.07
- Fel-Pro®Exhaust Manifold Hardware KitGMC Envoy / Envoy XL 2003, Exhaust Manifold Hardware Kit by Fel-Pro®. Set services one exhaust manifold or two exhaust manifolds. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from...Direct OEM replacement for a proper fitEnsures reliable sealing performance$29.69
- Dorman®Metal Black Exhaust Manifold to Cylinder Head Repair ClampGMC Envoy XL 5.3L 2003, Metal Black Exhaust Manifold to Cylinder Head Repair Clamp by Dorman®. Color: Black. Header Coating: Painted. Easily repair exhaust leaks without removing broken manifold bolts with Dorman's Exhaust Manifold to...Eliminates the need to remove cylinder head, saving you time and moneyReduces installation time$25.13
- Dorman®Brass Exhaust Manifold Hardware KitBrass Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your vehicle running its best.Direct replacement for a proper fitBuilt to Last$5.63
- Victor Reinz®Exhaust Manifold Gasket SetGMC Envoy 2003, Exhaust Manifold Gasket Set by Victor Reinz®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$11.87 - $16.90
- Davico®Exhaust ManifoldGMC Envoy / Envoy XL 4.2L 2003, Exhaust Manifold by Davico®. Position: Front. This product by Davico will be a great solution to replace your failed or damaged exhaust manifold. Once your stock cat fails to perform its job, replacement...Helps your vehicle emit harmless gasesDirect OEM replacement$101.31
- TruParts®Exhaust ManifoldGMC Envoy 2003, Exhaust Manifold by TruParts®. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition. Made from the finest materials in compliance with rigorous industry...Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition$75.32 - $154.28
- SKP®Exhaust Manifold Hardware KitGMC Envoy / Envoy XL 4.2L 2003, Exhaust Manifold Hardware Kit by SKP®. Put your vehicle back to its original condition with this top-notch transfer case component designed to efficiently transmit the engine power to both the front and...Designed to send the engine power to both the front and rear axlesDirect-fit replacement for your overworked, out-of-shape transfer case$8.70
- Hedman Hedders®Standard Duty Mild Steel HTC Polished Silver Ceramic-Metallic Short Tube Exhaust HeadersGMC Envoy XL RWD with Air Conditioning, Power Steering, A.I.R, AutomaticTransmission, EGR, Automatic Transmission Floor Shifter / Automatic Transsmision Column Shifter / Manual Transmission Floor Shifter 2003, Standard Duty Mild Steel...Made of High Quality 304 SSBuilt to Last$658.17
- Hooker®Cast Iron Exhaust ManifoldGMC Envoy XL 5.3L 2003, Cast Iron Exhaust Manifold by Hooker®. Primary Tubing Diameter: 1.75". Hooker cast iron exhaust manifolds have been designed to hug close to the engine block so they fit into a wide variety of replacement and...Free-flowing for good performance and catalytic converter efficiency304 stainless steel mating flanges included (mating flange fasteners are not included)$266.95 - $599.95
- Moroso®Aluminum Header Flange KitGMC Envoy XL 5.3L 2003, Aluminum Header Flange Kit by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make...Aluminum plates simplify the task of matching exhaust ports to large tube, dual flange headers on enginesOnly 3/8" thick to save weight$151.99
- ACDelco®Genuine GM Parts™ Exhaust Manifold Gasket SetGMC Envoy / Envoy XL 4.2L 2003, Genuine GM Parts™ Exhaust Manifold Gasket Set by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$16.85
- Hedman Hedders®Block Hugger Racing Exhaust HeadersBlock Hugger Racing Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 3". Color: Silver. Hedman’s Standard Block Hugger design is ideal for factory manifold replacement or engine swap...Low profile designBuilt of High Quality Materials$303.43 - $786.02
- Hedman Hedders®Cast Steel Exhaust ManifoldsCast Steel Exhaust Manifolds by Hedman Hedders®. Primary Tubing Diameter: 1.625". These cast steel manifolds have a low profile. Their design offers excellent clearance, while the thick cast design is extremely durable and dramatically...Made of High Quality Cast SteelBuilt to Last$360.25 - $512.44
- Hooker®Super Competition™ Short Tube Block Hugger Exhaust HeadersSuper Competition™ Short Tube Block Hugger Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Header Style: Short Tube. All necessary hardware included for a complete installation. These...Designed for optimal performanceIndustry’s best welds for durability$371.95 - $739.95
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