Gmpp exhaust?
Thread Starter
Senior Member
iTrader: (14)
Joined: 10-08-09
Posts: 1,560
Likes: 1
From: Long Island, NY
Gmpp exhaust?
I'm looking into getting the Gmpp performance exhaust. i wanna get some opinions on this setup and if anyone has it how do you like it? it sounds pretty mean and are their modest hp gains?? anyone recommend a different catback setup then the gmpp?
Thread
Thread Starter
Forum
Replies
Last Post