Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
| Attribute | Value |
|---|---|
| Exhaust Series | American Thunder |
| Exhaust Type | Dual |
| Exit Position | Dual Rear |
| Exit Style | Straight |
| Heat Shield Attached | No |
| Inlet Diameter | 2.500 In. |
| Inlet Inside Diameter | 2.500 In. |
| Muffler Count | 2 |
| Muffler Part Number | Kit Only |
| Muffler Series | 40 Series Delta Flow |
| Outlet Outside Diameter | 2.500 In. |
| System Type | Header Back |
| Tail Pipe Diameter | 2.500 In. |
| Tip Diameter | 2.500 In. |
| Tip Quantity | 2 |
| Tubing Diameter | 2.500 In. |
| WARNING CA Proposition 65 | Yes |
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Base | Convertible | 1964 - 1965 | L6 2.8L | RWD Automatic & Manual & U/K |
| Base | Convertible | 1964 - 1966 | L6 3.3L | RWD Automatic & Manual & U/K |
| Base | Convertible | 1964 - 1965 | V8 4.3L | RWD Automatic & Manual & U/K |
| Base | Convertible | 1964 - 1966 | V8 4.7L | RWD Automatic & Manual & U/K |
| Base | Fastback | 1965 | L6 2.8L | RWD Automatic & Manual & U/K |
| Base | Fastback | 1965 - 1966 | L6 3.3L | RWD Automatic & Manual & U/K |
| Base | Fastback | 1965 | V8 4.3L | RWD Automatic & Manual & U/K |
| Base | Fastback | 1965 - 1966 | V8 4.7L | RWD Automatic & Manual & U/K |
| Base | Hardtop | 1964 - 1965 | L6 2.8L | RWD Automatic & Manual & U/K |
| Base | Hardtop | 1964 - 1966 | L6 3.3L | RWD Automatic & Manual & U/K |
| Base | Hardtop | 1964 - 1965 | V8 4.3L | RWD Automatic & Manual & U/K |
| Base | Hardtop | 1964 - 1966 | V8 4.7L | RWD Automatic & Manual & U/K |
| Shelby GT-350 | Fastback | 1965 - 1966 | V8 4.7L | RWD U/K |
| Shelby GT-350H | Fastback | 1966 | V8 4.7L | RWD U/K |
We offer fast, reliable shipping on all orders:
We want you to be 100% satisfied with your purchase. That's why we offer:
This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.
Warranty does NOT cover:
Fits Years: 1964 1965 1966
Fits Models: Mustang
In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.
If it doesn't fit, we make it right. No gimmicks, no fine print.
Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.
Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.
Ask Wrenchy →