The Pypes Street Pro header-back exhaust system fits the 1965-1970 Ford Mustang with a small block V8. It runs 2.5 inch mandrel-bent stainless tubing from the headers back and uses an X-pipe crossover to balance flow between the banks for a smoother, deeper tone. The dual system is a complete kit designed to bolt to header collectors for a direct fit on these early Mustangs.
- Type: Header-Back Exhaust System with X-Pipe
- Series: Street Pro
- Material: stainless steel
- Diameter: 2.5 in
- Crossover: X-pipe
- Fits: Ford small block V8
- Sold as: Kit
- Part number: SFM03S
Vehicle Applications
- 1965 Ford Mustang (small block V8)
- 1966 Ford Mustang (small block V8)
- 1967 Ford Mustang (small block V8)
- 1968 Ford Mustang (small block V8)
- 1969 Ford Mustang (small block V8)
- 1970 Ford Mustang (small block V8)
FAQ
What does the Pypes SFM03S fit?
The SFM03S fits the 1965-1970 Ford Mustang equipped with a small block V8.
What size tubing does this system use?
It uses 2.5 inch mandrel-bent stainless steel tubing.
What does the X-pipe do?
The X-pipe crossover balances exhaust flow between the two banks, which smooths the tone and helps scavenging.
Where does this system connect?
It is a header-back system that bolts to the header collectors and runs to the rear of the vehicle.
Does this system include mufflers?
Yes. It is a complete Street Pro dual system supplied as a kit.

