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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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$618.99
Walker Ultra manifold converters fit like OE, because the company makes original equipment! These exhaust manifolds have an integrated catalytic converter—and are available for specific vehicle applications. Besides the great fit, inside the Ultra catalytic converters are ceramic substrates with high-tech washcoat and just 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 direct fit, quality, and performance of Walker Ultra manifold catalytic converters.
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$506.99
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$731.99
Specifically formulated for Californians, Walker CalCat manifold converters comply with regulations for OBD-II and pre-ODB-II vehicles. These exhaust manifolds have an integrated catalytic converter; their OE-style and fit enables an easier install. The CalCats feature a stainless steel body, a heat-shielded pipe, and a structural brace for enhanced strength and durability. In addition, they're built with the right loading of precious metals, the proper catalyst material and design, and a high-technology washcoat—providing enhanced oxygen storage capacity. Gain the best balance of performance and price from Walker CalCat manifold converters.
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$633.99
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$861.99
Walker direct-fit catalytic converters outflow stock converters, and also include these features: Aluminized steel heat shields (many have dual shields), 409 stainless steel shells, 16-gauge stainless steel pipes and nipples, and a heat-resistant sealed mat. The materials and construction contribute to a long life and better performance. Walker units are direct replacements for OE converters and will install with little or no modification. Some converters have steel air tubes with perforated holes to help distribute the airflow evenly, without robbing power. New flanges are included when necessary. Hundreds of models and configurations are available for fitment on specific vehicle applications.
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$535.99
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$605.99
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