The Pypes XFM43 is a 2.5 inch after-cat X-pipe for the 2005-2010 Mustang GT 4.6L. It is mandrel-bent from 409 stainless steel and is designed to work with the factory catalytic converters, installing by cutting the OEM catted downpipes and sliding the X-pipe over them. The crossover design balances exhaust pulses for a smoother tone and stronger flow. Catalytic converters are not included, so the original units are retained.
- Type: X-pipe crossover (after-cat)
- Material: 409 stainless steel, mandrel-bent
- Diameter: 2.5 in
- Cats: works with factory catalytic converters (not included)
- Application: Ford Modular 4.6L
- Sold as: Each
- Part number: XFM43
Vehicle Applications
- 2005 Ford Mustang GT (4.6L V8)
- 2006 Ford Mustang GT (4.6L V8)
- 2007 Ford Mustang GT (4.6L V8)
- 2008 Ford Mustang GT (4.6L V8)
- 2009 Ford Mustang GT (4.6L V8)
- 2010 Ford Mustang GT (4.6L V8)
FAQ
What does the XFM43 fit?
The 2005-2010 Mustang GT with the 4.6L engine.
Does it keep my catalytic converters?
Yes. It is an after-cat X-pipe that retains the factory converters.
Is it street legal?
It works with the factory converters and does not delete them, so it keeps the emissions system in place.
What size is it?
2.5 inch, mandrel-bent 409 stainless steel.

