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 |
| fm_warranty_general.pdf | 88.58KB |
| 817273_instructions.pdf | 3.46MB |
| Make | Model | Submodel | Years | Engine | Fitment Notes |
| Ford | Mustang | Base | 1964 | 4.7L / 289 / V8 4.3L / 260 / V8 |
Does Not Fit GT or Convertible |
| Ford | Mustang | Base | 1965 | 4.7L / 289 / V8 4.3L / 260 / V8 |
Does Not Fit GT or Convertible |
| Ford | Mustang | Base | 1966 | 4.7L / 289 / V8 | Does Not Fit GT or Convertible |
| 2WD/4WD | 2WD |
| 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 |
| Heat Shield | No |
| Inlet Diameter (in) | 2.5 |
| Material | 409 Stainless Steel |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 2 |
| Muffler Series | 40 Series Delta Flow |
| Outlet Diameter (in) | 2.5 |
| 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 |
| Tip Diameter (in) | 2.5 |
| Tip Quantity | 2 |
| Tubing Diameter (in) | 2.5 |
| Warranty | Limited Lifetime (Lifetime) |
