The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
WarrantyInstallation Instructions
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1987 | Chevrolet | Blazer | Custom Deluxe |
| 1987 | Chevrolet | Blazer | Silverado |
| 1988-1993 | Chevrolet | C1500 | Cheyenne |
| 1988-1990 | Chevrolet | C1500 | Scottsdale |
| 1988-1993 | Chevrolet | C1500 | Silverado |
| 1990-1993 | Chevrolet | C1500 | WT |
| 1988-1993 | Chevrolet | C2500 | Cheyenne |
| 1988-1990 | Chevrolet | C2500 | Scottsdale |
| 1988-1993 | Chevrolet | C2500 | Silverado |
| 1988-1993 | Chevrolet | K1500 | Cheyenne |
| 1988-1990 | Chevrolet | K1500 | Scottsdale |
| 1988-1993 | Chevrolet | K1500 | Silverado |
| 1991 | Chevrolet | K1500 | Sport |
| 1990-1993 | Chevrolet | K1500 | WT |
| 1988-1993 | Chevrolet | K2500 | Cheyenne |
| 1988-1990 | Chevrolet | K2500 | Scottsdale |
| 1988-1993 | Chevrolet | K2500 | Silverado |
| 1985-1991 | Ford | Bronco | Custom |
| 1985-1991 | Ford | Bronco | Eddie Bauer |
| 1990-1991 | Ford | Bronco | XL |
| 1985-1991 | Ford | Bronco | XLT |
| 1988-1992 | Ford | F-250 | Custom |
| 1995 | Ford | F-250 | Eddie Bauer |
| 1995 | Ford | F-250 | Special |
| 1988-1995 | Ford | F-250 | XL |
| 1993-1995 | Ford | F-250 | XLT |
| 1988-1992 | Ford | F-250 | XLT Lariat |
| 1988-1992 | Ford | F-350 | Custom |
| 1995 | Ford | F-350 | Eddie Bauer |
| 1995 | Ford | F-350 | Special |
| 1988-1995 | Ford | F-350 | XL |
| 1993-1995 | Ford | F-350 | XLT |
| 1988-1992 | Ford | F-350 | XLT Lariat |
| 1988-1993 | GMC | C1500 | Sierra |
| 1988-1993 | GMC | C1500 | Sierra SLE |
| 1988-1993 | GMC | C1500 | Sierra SLX |
| 1988-1993 | GMC | C2500 | Sierra |
| 1988-1993 | GMC | C2500 | Sierra SLE |
| 1988-1993 | GMC | C2500 | Sierra SLX |
| 1980-1987 | GMC | Jimmy | Base |
| 1980-1985 | GMC | Jimmy | High Sierra |
| 1980-1985,1987 | GMC | Jimmy | Sierra Classic |
| 1980-1982 | GMC | Jimmy | Sierra Grande |
| 1980-1982 | GMC | Jimmy | Street Coupe |
| 1988-1993 | GMC | K1500 | Sierra |
| 1988-1993 | GMC | K1500 | Sierra SLE |
| 1988-1993 | GMC | K1500 | Sierra SLX |
| 1993 | GMC | K1500 | Sierra Sport |
| 1988-1993 | GMC | K2500 | Sierra |
| 1988-1993 | GMC | K2500 | Sierra SLE |
| 1988-1993 | GMC | K2500 | Sierra SLX |
