I have on 06 GT with Flomaster 40's and it sounds good, but needs to be louder and meaner. Any suggestions? I've heard adding a midpipe or x pipe is good, but not really sure about those.

 

I had the flowmasters. About a month ago I installed an off-road x-pipe. It got to loud for my taste. I removed the flows and re-installed the factory mufflers.

 

Ive got American Thunder flows and an off road H pipe. I like it, but It is really LOUD. lol

Swing on over to www.brenspeed.com. The site has video/audio clips of different exhaust set ups.

Hope this helps and good luck on your choice!

 

if your local laws permit get an o/r mid pipe, it will def get louder