2018 Chevrolet Impala Exhaust Parts

Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.

Product Features:

• EPA COMPLIANT — For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO & NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
• DIRECT-FIT DESIGN — Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication and/or welding
• KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
• STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and durability
• OE-STYLE DESIGN — Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
• BUY WITH CONFIDENCE — Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 5-year 50,000-mile/80,000-kilometer structural integrity warranty

Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:

• CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
• SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
• CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
• DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
• FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
• BUY WITH CONFIDENCE — Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty

Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:

• CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
• SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
• CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
• DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
• FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
• BUY WITH CONFIDENCE — Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty

Walker Ultra Direct-Fit Catalytic Converters, an industry leader for import And domestic applications, are engineered with durable stainless steel bodies. Walker Ultra Catalytic Converters are available for OBDII (1996 And newer) vehicles. Engineered for specific vehicle emissions requirements, And features a higher loading of precious metals, optimal substrate content, And a high technology washcoat to provide unsurpassed performance, And durability. Walker Ultra Catalytic Converters meet EPA emission requirements, And have a 25,000-mile catalytic performance warranty, in addition to a 5-year/50,000-mile structural integrity warranty.

Product Features:

• EPA COMPLIANT — For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO or NY. Legal inME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
• Flange to flange, direct fit design bolts to existing exhaust
• Features ample precious metal load & proprietary wash coat technology
• Stainless steel body with aluminized pipe and heat shields for durability
• Thick OE-style flanges, hangers and brackets for enhanced strength
• OE-style routing and hanger position for easy installation
• Meets EPA emissions requirements
• Not legal for sale in California

The MagnaFlow 1961-1964 Chevrolet Impala Street Series Crossmember-Back Performance Exhaust System 16724 brings enhanced engine sound and dyno-proven performance to your 3.8L, 4.6L, 5.3L, 5.4L, 5.7L, 6.7L, 7.0L 1961-1964 Chevrolet Impala with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Chevrolet Impala exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Chevrolet Impala’s exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 3in. Polished Welded-On Single Wall Angle Cut Rolled Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16724 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

DynoMax® Super Turbo performance mufflers exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications. The large internal flow tubes improve exhaust flow and reduce backpressure. Each muffler uses fiberglas

Product Features:

• Large internal flow tubes improve exhaust flow and reduce backpressure
• Exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications.
• Fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone
• Dyno proven to flow up to 700 SCFM

The MagnaFlow 1965-1969 Chevrolet Impala Street Series Crossmember-Back Performance Exhaust System 15165 brings enhanced engine sound and dyno-proven performance to your 3.8L, 4.1L, 4.6L, 5.0L, 5.3L, 5.4L, 5.7L, 6.5L, 6.7L, 7.0L 1965-1969 Chevrolet Impala with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Chevrolet Impala exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Chevrolet Impala’s exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Multiple Exit Options exit with 2.5in. Polished Weld-On Single Wall Turndown Cut Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15165 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

The MagnaFlow Street Series Cat-Back Performance Exhaust System 16729 brings out the personality of your 3.4L, 3.8L 2000-2005 Chevrolet with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 3 Straight-Through mufflers ending in a Dual Split Rear exit with 3.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Chevrolet exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Chevrolet’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 16729 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16729 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

Complete your exhaust repair with Walker┬« gaskets and flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:

• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizesfora quality vehicle repair
• HEAT RESISTANT — Designed to resist heat for long-lasting performance
• PREMIUM MATERIALS — Made from high-quality materials for durability and long life
• ENGINEERING EXPERTISE — Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
• REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
• EASIER TO INSTALL — Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
• BETTER TOGETHER — Use premium Walker-½ accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

Complete your exhaust repair with Walker┬« gaskets and flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:

• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizesfora quality vehicle repair
• HEAT RESISTANT — Designed to resist heat for long-lasting performance
• PREMIUM MATERIALS — Made from high-quality materials for durability and long life
• ENGINEERING EXPERTISE — Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
• REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
• EASIER TO INSTALL — Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
• BETTER TOGETHER — Use premium Walker-½ accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function
• Contains all gaskets and seals to remove and replace exhaust manifold

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function
• Contains all gaskets and seals to remove and replace exhaust manifold
• Contains all gaskets and seals to remove and replace exhaust manifold

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function
• Contains all gaskets and seals to remove and replace exhaust manifold
• Contains all gaskets and seals to remove and replace exhaust manifold

Header Gasket

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function
• Contains all gaskets and seals to remove and replace exhaust manifold
• Contains all gaskets and seals to remove and replace exhaust manifold

Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:

• Direct replacement for a proper fit every time
• Durable steel construction
• New hardware helps fix exhaust leaks
• Also available in the Exhaust Manifold Hardware Kit

Complete your exhaust repair with Walker® exhaust hangers. Designed with OE-style features to support undercar exhaust components, Walker hangers are manufactured from durable and robust material for long service life.

Product Features:

• KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
• OE DESIGN — Designed with OE-style features for easy installation
• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
• PREMIUM MATERIALS — Made from quality steel for durability and long life
• BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

Complete your exhaust repair with Walker® exhaust hangers. Designed with OE-style features to support undercar exhaust components, Walker hangers are manufactured from durable and robust material for long service life.

Product Features:

• KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
• OE DESIGN — Designed with OE-style features for easy installation
• AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
• PREMIUM MATERIALS — Made from quality steel for durability and long life
• BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade

Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:

• Direct replacement for a proper fit every time
• Durable steel construction
• New hardware helps fix exhaust leaks
• Also available in the Exhaust Manifold Hardware Kit

This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:

• Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles
• Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
• Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
• Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

Headlock&trade: Bolts eliminate the need for lock washers, Period. That’s because each Headlock&trade: Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Product Features:

• 16 per Package
• Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
• 410 stainless steel
• Minimum 180,000 PSI tensile strength
• 24 equally spaced clockwise teeth

ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:

• Material Is Not Affected By Corrosion Or Extreme Heat
• The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
• Substantially Stronger Than Grade 8 Hardware
• Nominally Rated At 170,000 PSI Tensile Strength
• Set of 16
• 0.75″ Overall Length

Vibe-Lock Bolt

Vibe-Lock Bolt

Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct replacement of rusted or damaged exhaust bolts and springs.

Product Features:

• New hardware helps fix exhaust leaks
• Depending on the application, kits include hardware to securely attach the manifold to the exhaust system
• Also available separately (where applicable)
• Hardened steel construction for long-lasting durability