Thanks for the reply. I just bought the car 4 days ago and just put some flowmaster mufflers on. Just asking because every person I know that has a mustang always talks about an off road H-pipe, and I just didn't know what it did. Does it increase HP and make for a meaner rumble?
I'm new to this, so forgive me if i ask some dumb questions. Wanted a 5.0 since I was 17, and saw a chance to grab one at a pretty good price.
Again, thanks for the reply!
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gimme speed!
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