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HUMMER Manifolds

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BD Diesel Exhaust Manifolds

These BD Diesel exhaust manifolds help you maximize your engines true potential. Your stock manifolds can require extensive cleaning and machining to be recovered from warping and distortion. These heavy-walled manifolds are coated to resist corrosion, with some models even predrilled for pyrometer probes. BD Diesel exhaust manifolds are great preventative upgrades whenever you're doing other engine work.

4.69 out of 5 stars ( 45 )

$573.95

Walker Ultra Direct-Fit Catalytic Converters

Walker Ultra Direct-Fit catalytic converters fit like OE, because the company makes original equipment! Besides the perfect fit, inside the Ultra catalytic converters are ceramic substrates with high-tech washcoat and the right loading of precious metals. The outside bodies are stainless steel for long life and durability. Catalytic converters are a vital part of your vehicle's emission control system; choose the fit, quality, and performance of a Walker Ultra catalytic converter. Order the replacement model designed for your vehicle application.

4.43 out of 5 stars ( 387 )

$636.99

Walker Exhaust Ultra Direct-Fit Exhaust Manifolds

Walker Exhaust offers Ultra Direct-Fit exhaust manifolds for a wide range of applications—including many Chevrolet, GMC, and Hummer vehicles from the past two decades. Flange to flange, their direct-fit design bolts to your existing exhaust. They feature a stainless steel body with aluminized pipe and heat shields for durability; along with high precious metal load and high technology washcoat for premium performance. OE-style hangers, brackets, routings, and heat shields allow for quick and easy installation on direct-fit units. Additional product notes: * Universal catalytic converter may require modification to complete installation * Premium direct-fit and universal catalytic converters for OBDII vehicles (1996 and newer) * Meets EPA emissions requirements. * As of Feb. 2023, not legal for sale or use in California, Colorado and New York. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state's aftermarket converter regulations for details.

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$603.99

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