Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.
| Download Name | File Size |
| 817937_instructions.pdf | 2.84MB |
| Make | Model | Submodel | Years | Engine | Fitment Notes |
| Chevrolet | C10 Pickup | Base | 1963 | 4.6L / 283 / V8 | Big Block Chevy Swap Small Block Chevy Swap LS Swap LT Swap |
| Chevrolet | C10 Pickup | Base | 1964 | 4.6L / 283 / V8 | Big Block Chevy Swap Small Block Chevy Swap LS Swap LT Swap |
| Chevrolet | C10 Pickup | Base | 1965 | 4.6L / 283 / V8 | Big Block Chevy Swap Small Block Chevy Swap LS Swap LT Swap |
| Chevrolet | C10 Pickup | Base | 1966 | 4.6L / 283 / V8 5.3L / 327 / V8 |
Big Block Chevy Swap Small Block Chevy Swap LS Swap LT Swap |
| GMC | 1000 Series | Base | 1963 | 4.6L / 283 / V8 | Small Block Chevy Swap LT Swap Big Block Chevy Swap LS Swap |
| GMC | 1000 Series | Base | 1964 | Small Block Chevy Swap LT Swap Big Block Chevy Swap LS Swap |
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| GMC | 1000 Series | Base | 1965 | Small Block Chevy Swap LT Swap Big Block Chevy Swap LS Swap |
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| GMC | 1000 | Base | 1966 | LS Swap Big Block Chevy Swap Small Block Chevy Swap LT Swap |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds), Nickel (Metallic) |
| California Proposition 65 Required | Yes |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exit Position | Dual Out Rear / Dual Out Side |
| Material | 409 Stainless Steel |
| Mount Type | Uses Factory Hangers |
| Muffler Body Length (in) | 13 |
| Muffler Color | Black |
| Muffler Finish | Painted |
| Muffler Inlet Diameter (in) | 2.5 |
| Muffler Inlet Location | Offset |
| Muffler Material | 409S Stainless Steel |
| Muffler Outlet Diameter (in) | 2.5 |
| Muffler Outlet Location | Offset |
| Muffler Overall Length (in) | 19 |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 2 |
| Muffler Series | Super 44 |
| Muffler Shape | Oval |
| Muffler Type | Welded Baffle |
| Part Type | Exhaust System Kit |
| Product Type | Exhaust System |
| Proposition 65 | www.P65Warnings.ca.gov |
| Single Dual | Dual |
| Sound Level | Aggressive / Moderate |
| System Type | Crossmember-back |
| Tubing Diameter (in) | 2.5 |
| Tubing Material | 409S Stainless Steel |
