MustangWorks.com : Ford Forums - View Single Post - How big are the stock tail pipes and how restrictive are they?

The Deuce · 12-08-2003, 11:45 PM

As long as they are not the smallest pipe in the exhaust, there is no restriction. If your collectors, mid pipe and mufflers are all bigger, go for it.

I would personally make sure the muffs are a flow-through, like magnaflow or ultraflow first, since a chamber is going to create backpressure worse than a .25 decrease in diamiter.

12-08-2003, 11:45 PM	#3
The Deuce Registered Member Join Date: Apr 2002 Location: Atlanta, GA Posts: 2,325	As long as they are not the smallest pipe in the exhaust, there is no restriction. If your collectors, mid pipe and mufflers are all bigger, go for it. I would personally make sure the muffs are a flow-through, like magnaflow or ultraflow first, since a chamber is going to create backpressure worse than a .25 decrease in diamiter. __________________ 1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60' 1995 Honda VFR750 - not much @ really fast (actual data pending.) 1964.5 Mustang 289 Rice Haters Club Member #13