Flowmaster 3IN(C)/2.5OUT(D) 40 Series SS Muffler
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 409S stainless 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 |
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
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