# MagnaFlow 3391474 Direct Fit California Stainless Catalytic Converter (2.5" ID/2.5" OD) for 1988-1993 Chevrolet Astro and More ### Performance Overview Magnaflow's California Catalytic Converter is designed to be CARB compliant. The catalytic converter's ribbed body is designed to minimize distortion and expansion of the body to hold the ceramic catalyst in place. magnaflow's Catalytic Converters are made of stainless steel and are backed by their limited lifetime warranty. ### Key Features - Brand: MagnaFlow - Part number: 3391474 - Product type: Direct Fit California Stainless Catalytic Converter (2.5" ID/2.5" OD) - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 1992 Chevrolet Astro, Note: Base, Cl, Cs, Lt; 4.3L; 2.50"; 2.50" - 1988 Chevrolet C1500, Note: Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" - 1989 Chevrolet C1500, Note: Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" - 1990 Chevrolet C1500, Note: Cheyenne, Scottsdale, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" - 1991 Chevrolet C1500, Note: Cheyenne, Scottsdale, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" - 1992 Chevrolet C1500, Note: Cheyenne, Scottsdale, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" - 1993 Chevrolet C1500, Note: Cheyenne, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" - 1988 Chevrolet C2500, Note: Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase. **What part number is this?** The listed part number is 3391474. **Is this product designed for direct replacement?** Yes. This product is intended to match compatible vehicle applications listed in the fitment section. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering. ### Common Searches - Direct Fit California Stainless Catalytic Converter (2.5" ID/2.5" OD) for Chevrolet Astro - 3391474 fitment - MagnaFlow Direct Fit California Stainless Catalytic Converter (2.5" ID/2.5" OD) - 1988 Chevrolet Astro Direct Fit California Stainless Catalytic Converter (2.5" ID/2.5" OD) ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1992 Chevrolet Astro Base, Cl, Cs, Lt; 4.3L; 2.50"; 2.50" 1988 Chevrolet C1500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1989 Chevrolet C1500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1990 Chevrolet C1500 Cheyenne, Scottsdale, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" 1991 Chevrolet C1500 Cheyenne, Scottsdale, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" 1992 Chevrolet C1500 Cheyenne, Scottsdale, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" 1993 Chevrolet C1500 Cheyenne, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" 1988 Chevrolet C2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1989 Chevrolet C2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1990 Chevrolet C2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1991 Chevrolet C2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1992 Chevrolet C2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1993 Chevrolet C2500 Cheyenne, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1988 Chevrolet K1500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1989 Chevrolet K1500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1990 Chevrolet K1500 Cheyenne, Scottsdale, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" 1991 Chevrolet K1500 Cheyenne, Scottsdale, Silverado, Sport, Wt; 4.3L, 5.0L; 2.50"; 2.50" 1992 Chevrolet K1500 Cheyenne, Scottsdale, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" 1993 Chevrolet K1500 Cheyenne, Silverado, Wt; 4.3L, 5.0L; 2.50"; 2.50" 1988 Chevrolet K2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1989 Chevrolet K2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1990 Chevrolet K2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1991 Chevrolet K2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1992 Chevrolet K2500 Cheyenne, Scottsdale, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1993 Chevrolet K2500 Cheyenne, Silverado; 4.3L, 5.0L; 2.50"; 2.50" 1988 Chevrolet R20 Custom Deluxe; 4.3L, 5.0L; 2.50"; 2.50" 1988 GMC C1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1989 GMC C1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1990 GMC C1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1991 GMC C1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1992 GMC C1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1993 GMC C1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1988 GMC C2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1989 GMC C2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1990 GMC C2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1991 GMC C2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1992 GMC C2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1993 GMC C2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1988 GMC K1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1989 GMC K1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1990 GMC K1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1991 GMC K1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1992 GMC K1500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1993 GMC K1500 Sierra, Sierra Sle, Sierra Slx, Sierra Sport; 4.3L, 5.0L; 2.50"; 2.50" 1988 GMC K2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1989 GMC K2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1990 GMC K2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1991 GMC K2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1992 GMC K2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1993 GMC K2500 Sierra, Sierra Sle, Sierra Slx; 4.3L, 5.0L; 2.50"; 2.50" 1992 GMC Safari Base, Sle, Slt; 4.3L; 2.50"; 2.50" ## Details - **Price:** 1413.75 CAD - **Vendor:** MagnaFlow - **Type:** Direct Fit California Stainless Catalytic Converter (2.5" ID/2.5" OD) - **Tags:** 1988 Chevrolet C1500, 1988 Chevrolet C2500, 1988 Chevrolet K1500, 1988 Chevrolet K2500, 1988 Chevrolet R20, 1988 GMC C1500, 1988 GMC C2500, 1989 Chevrolet C1500, 1989 Chevrolet C2500, 1989 Chevrolet K1500, 1989 Chevrolet K2500, 1989 GMC C1500, 1989 GMC C2500, 1990 Chevrolet C1500, 1990 Chevrolet C2500, 1990 Chevrolet K1500, 1990 Chevrolet K2500, 1990 GMC C1500, 1990 GMC C2500, 1991 Chevrolet C1500, 1991 Chevrolet C2500, 1991 Chevrolet K1500, 1991 Chevrolet K2500, 1991 GMC C1500, 1992 Chevrolet Astro, 1992 Chevrolet C1500, 1992 Chevrolet C2500, 1992 Chevrolet K1500, 1992 Chevrolet K2500, 1992 GMC C1500, 1993 Chevrolet C1500, 1993 Chevrolet C2500, 1993 Chevrolet K1500, 1993 Chevrolet K2500, 1993 GMC C1500, 3391474, Auto Parts, Automotive, Catalytic Converter, Direct Fit California Stainless Catalytic Converter (2.5" ID/2.5" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-3391474, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1413.75 CAD | In stock | ## Images - MagnaFlow 3391474 Direct Fit California Stainless Catalytic Converter (2.5" ID/2.5" OD) --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-chevrolet-astro-catalytic-converter-carb-3391474) > Updated: 2026-07-16