I was thinking about picking this up but cant fing much on it. I looked on there web site but they dont say much. I have heard you loose power with side exaust and just wanted to know how much. Thanks.
You probably lose a couple, not enough to make you not buy it. Here you go, these guys sell them http://www.stage3motorsports.com/category/150mustang9404.exhaust.catbacksystems/ They sound great on the side exhaust setup. Spintchs are my next purchase.Good luck.
just custom fab it like i did, if you do it right it's better flow than any other over-axle design. Side pipes FTW look in my garage or PM me for details of how i did it, i have pics somewhere of the design