1986-1991 Magnaflow C4 Corvette CARB Compliant Direct-Fit Catalytic Converter
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1986-1991 Chevrolet Corvette C4 5.7L Catalytic Converter - MagnaFlow 337487 California Grade CARB Compliant Direct-Fit Replacement. This converter is engineered specifically for the 1986, 1987, 1988, 1989, 1990, and 1991 Chevy Corvette C4 5.7L, delivering a precise OE-style fit right out of the box. MagnaFlow part number 337487 meets strict California Air Resources Board (CARB) standards, making it fully compliant for use in California and all federal EPA emissions states - a critical trust signal for smog-check and emissions-test peace of mind. The high-efficiency catalytic substrate promotes improved exhaust flow and overall system efficiency, helping eliminate check engine lights caused by worn or failing converters. Built from corrosion-resistant stainless steel, this MagnaFlow catalytic converter is engineered for long-lasting durability and reliable emissions performance mile after mile. The direct-fit, bolt-on design uses your Corvette's factory mounting points with no cutting, welding, or modification required - making this one of the easiest catalytic converter replacements available for the C4 platform. Whether you're restoring emissions compliance, passing a smog inspection, or simply replacing a degraded converter, MagnaFlow 337487 delivers OEM-quality results with a straightforward installation any experienced DIYer or shop technician can complete with confidence.
| Model Year | 1986, 1987, 1988, 1989, 1990, 1991 |
|---|---|
| Base Unit of Measure | EA |
| Search Description | 1986-1991 C4 MAGNAFLOW CATALYTIC CONV DIRECT FIT |
| Net Weight | 34.000000 |
MagnaFlow
After WWII, Jerry Paolone left his home in Italy and moved to the United States. As an extension of Car Sound Exhaust, Magnaflow believes in top quality, maximum power, and the best exhaust sound for your vehicle. Magnaflow dyno-tests every product they make, and their ISO-9001 manufacturing certification assures every part is made to the highest standard. When faced with the question of moving manufacturing overseas in the early 2000’s, Jerry objected, remodeled his facilities, and continued offering top-level benefits to each of his employees. Their headquarters in CA is state-of-the-art, and Magnaflow is constantly innovating. If you’re looking for exhaust components, check out Magnaflow Performance Exhaust in the Zip Catalog.