Nissan Exhaust Manifold and Headers

Complete your exhaust repair with a Walker air intake tubing. Designed to work seamlessly with OE and Walker rubber intake parts, Walker hardware is manufactured from durable and robust material for long service life.

Product Features:

• CUSTOMIZABLE FIT¿– Universal fit for installation flexibility
• CUSTOMIZABLE FIT┐– Universal fit for installation flexibility
• COMPATIBILITY — Features OD-OD sized ends designed to work seamlessly with OE and Walker rubber intake parts
• QUALITY MATERIALS¿–¿Made from¿aluminum¿for durability and¿long life
• QUALITY MATERIALS┐–┐Made from┐aluminum┐for durability and┐long life
• Designed to work seamlessly with OE and Walker aftermarket replacement parts
• New Walker« accessories help to ensure effective exhaust repairs
• New Walker® accessories help to ensure effective exhaust repairs

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

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

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

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:

• Ideal replacement – the manifold bolt and spring match the fit and function of the original equipment hardware, including bolt diameter, thread pitch and head type.
• Complete installation – this kit includes hardware required for securely attaching the manifold to the exhaust system
• Trustworthy construction – the kit’s bolt and spring are made of hardened steel for durable, long-lasting service life
• Quality tested – kit components have undergone extensive testing to ensure proper function and long service life

Designed to comply with EPA emissions requirements while delivering premium performance with assured compliance, Walker Ultra EPA-Compliant Manifold Converters 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 — Bolt-off, bolt-on OE-style converter with integrated manifold assemblies that attach directly to engine cylinder head and match all downstream connections
• 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 and manifolds 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

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

Product Features:

• Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles.
• Convenient kit – includes gaskets and downpipe hardware to simplify installation.
• Durable construction -manufactured within strict tolerances for reliable longevity
• Trustworthy value – backed by team of engineers and quality control experts in the United States

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Manifold Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.

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.
• 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.
• DIRECT-FIT DESIGN — Bolt-off, bolt-on OE-style converter with integrated manifold assemblies that attach directly to engine cylinder head and match all downstream connections
• 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
• STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and stainless-steel body with aluminized pipe and heat shields for durability

This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

Product Features:

• Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles.
• Convenient kit – includes gaskets and downpipe hardware to simplify installation.
• Durable construction -manufactured within strict tolerances for reliable longevity
• Trustworthy value – backed by team of engineers and quality control experts in the United States

This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

Product Features:

• Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles.
• Convenient kit – includes gaskets and downpipe hardware to simplify installation.
• Durable construction -manufactured within strict tolerances for reliable longevity
• Trustworthy value – backed by team of engineers and quality control experts in the United States

This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

Product Features:

• Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles.
• Convenient kit – includes gaskets and downpipe hardware to simplify installation.
• Durable construction -manufactured within strict tolerances for reliable longevity
• Trustworthy value – backed by team of engineers and quality control experts in the United States

This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:

• Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles.
• Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance.
• Complete repair – includes all necessary gaskets and downpipe hardware
• Trustworthy design – built by industry leader in aftermarket manifolds

Catalytic Converter

MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49536 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed to fit the 2001-2002 Nissan Quest and 2001-2002 Mercury Villager. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:

• Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
• Simplifies installation with essential gaskets and hardware being included in the box.
• Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49293. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra, this direct-fit catalytic converter also interchanges with OE parts 14002-8J008 and 14002-9J305, among others. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:

• Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
• Simplifies installation with essential gaskets and hardware being included in the box.
• Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.