here http://www.mazdatrix.com/r-ex86nt.htm is there any preformance, sound, or appearance difference between the HKS mufflers and Racing Beat mufflers? If there is an appearance difference would some one post pics of each or both please. thanks.

-jeff

 

There have been a lot of threads on this. You can search and find them but here is one I am happy with.

https://www.rx7club.com/forum/showth...GTUs+in+stereo

 

thanks, srry didn't even think about searching