ok i have a 1997 mustang gt and i currently have glasspacks and they only pop and rumble when the car revs down.i want something that pops and rumbles from when u rev it up to when it revs down but keeps its tone and doesnt drown out i was thinkin about an slp loudmouth is this what im lookin for?
Another vote for carb and intake first. The exhaust can go later, and depending how far you plan on going with the HP level, I would get 3 pipes, backpressure is NOT your friend. The stock heads are still going to be the choke point in the system. If you have plans for replacing them with aftermarket, then anything less then 3 pipes, in my opinion, are not an option.
ATTN: Do this first, get your car heated heated up, or run it all day. shut it off, but keep mufflers HOT, get water hose and spray COLD water up tail pipes. It will crack the fiberglass in the flowmaster. Then start it back up and see if that helps, keep doing this until you reach desired sound. PS, if it does not work, look into cherry bombs. PSS, You wont ruin car or truck, and you will have loud sound. Warning, do not keep doing that if you have reached your desired level of sound, cause the next time you do it thinking you may want a little louder sound you can make it too loud very easily.
I had the SLP Loudmouth on my 97 GT and it only crackles on deceleration, not through the entire rev-range. The Loudmouth is basically a glass-pack system. The resonators on the Loudmouth are hollow, it's basically a straight through exhaust. An x-pipe may provide a raspier tone closer to cracking and popping.
Go with a MAC cat back system (high flow cats and exhaust). I have it installed on my 2000 GT and I think it sounds way better than the Borla or the Bassani systems. By the way don't go over 2.5 diameter pipes or you will actually lose performance.
