I've got an x pipe with high flo cats and 3-chamber flowmasters in my 99GT. i was thinking of putting in 2 chamber flowmasters instead. Is it worth it? I know i won't gain any HP but do the 2 chambers sound that much better and/or louder than the 3 chamber, is there a noticeable difference?

 

The less chambers the louder.

 

I like the way my 2 chambers sound. Yes it will be louder than 3 chambers. Go to www.mustangexhaust.com and see for yourself