SFM69 Cat Back Exhaust System (05-10 Mustang 4.0L 2.5in)

Awesome modification for your mustang v6!!

I took this to a professional exhaust place, and it took the guy almost 9 hours to install it as the fitment was horrible and he had to cut and weld everything. Instead of charging me 250 he charged me around 600 because of all the extra labor he had to do.If I had known these numbers ahead of time I would’ve just gone with something like Borla :(

The sound is awesome but the fit is not good. The pipes had to be installed and removed to realign and even re-bent to fit and it cost and additional $400 to get them installed. Even after losing count the number of times the system was installed and removed to make adjustments the tips still don't align correctly at the openings of the rear bumper!

Great fit and sounds even better !!!

These have a great performance sound most of the time, but if I run my A\C or if it is cold outside when I start the Mustang up these rattle and vibrate terribly. Called Pypes since I travel past their place often, but got no satisfaction. Tried to readjust them several times myself. It did help, but the rattles and vibrations always come back. Too bad, because the Mustang sounds great when the system is behaving properly.

The fitment of the system was horrible wound up having to trim two pipes as well as cut and re bend 3 of the 4 tailpipe hangers. There was far too much work to get the system to fit in the car and line up. Also if you want an exhaust where the muffler is against you gas tank or 1/8 inch away from the gas tank then this is the exhaust for you. With all the fitment issues the exhaust too twice as long to install in the car and a bolt up system should never be that complex to install.