onederful100

idk, the open header sound just is too raunchy for me. i used to say that it can never be too loud. but i just switched to deletes from boomtubes, the rest of my exhaust is LT's and o/r x pipe, and it is too loud and too raunchy, not good sounding. i'm putting in some m80's from pypes, hopefully it'll sound better. i think having the straight pipes all the way back doesnt sound that good, but the prochamber will smooth it out a bit.

Ato

I think saying you want a sleeper Mustang is a bit of an oxymoron. It's a Mustang, v6 or GT is still has a fairly aggressive look stock and most people wouldn't know the difference between the two anyway.

alloutt

i saw a guy with the license plate SLEEPER the other day pretty cool considering there is only one guy with that plate in my state

NewmanGT

+1 , most people cant tell a GT from a V6 pony package... unless you got some exhaust even then, the common car shopper can tell a v6 dual, and a v8 dual...

Think about it, some kids think a 4cyl with a tin can at the end sounds "good"... common knowledge isnt as common as you think.

AmericanSpeed

A lisence plate with "SLEEPER" on it kind of defeats the purpose. I'm all for the sleeper exhaust, its why I'm keeping all my stock exhaust. I like it when all they hear is the blower screaming by.