The MagnaFlow Direct-Fit Catalytic Converter 337487 is a California Grade, CARB-compliant replacement built on a spun 16-gauge 409 stainless steel body, with a single laser-fusion weld that reduces the chance of leaks and a compact low-mass design for greater thermal efficiency. It installs in the factory location using the proper tools with no cutting or welding, and includes OE-sized 410 stainless hangers and hardware to replace a corroded original. It meets or exceeds CARB requirements for legal use in California and CARB-restricted states on the listed vehicles.
| Type | Direct-fit catalytic converter |
| Position | Underbody (single direct-fit converter) |
| Material | 16-gauge 409 stainless steel (spun body) |
| Emissions | California Grade, CARB compliant |
| Included | Gaskets, hardware, 410 stainless hangers |
| Quantity | 1 |
| Part Number | 337487 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988 | Chevrolet | Corvette | 35th Anniversary Edition |
| 1986-1991 | Chevrolet | Corvette | Base |
| 1986 | Chevrolet | Corvette | Indianapolis 500 Pace Car |
| 1990-1991 | Chevrolet | Corvette | ZR-1 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
