Timspony

I always liked a H pipe on a 5L Mustang! ...even better with Flowmasters!

SJPajak

im trying to get my car sounding SICK and as loud as i can get it because thats just my preference

mikekx65

Try open headers if you want it the loudest possible.

SJPajak

if i go open headers, ill most likely get pulled for sure.

OnyxCobra

SLP LM1 with an offroad pipe will be the loudest, might as well run straight pipes. Basically the same thing...

94Blk5.0

Remember nosie and sound are not the same thing. Tone is very important.

My vote H-Pipe. I have an O/R H-Pipe and Flowamster delta flow 40's. I like it, sounds good. It has a good amount of volume to it when you want it, but its also quite( relativley speaking) when you want it to be.

Crawl under the car, get the part # off the mufflers, and look it up and flowmaster's website.

Milton

i like the x myself and i have unknown flows as well but it kinda sounds like you like the h. the pro chamber sounds pretty bada** too