I am currently looking for a new cat back system for my RX8, I'm not to worried about being too loud, just want to best performance. Does anyone have any suggestions or comments???

 

Use the search button before you get flamed: This has been discussed a MILLION times.

It all basically comes down to which exhaust YOU like. You won't see any significant gains with the catbacks on the market.

 

The midpipe is where you would need to make your decision. Still not a lot of hp to free up, but running the RP Supercat helps.

 

RP Supercat is great! Try searching though, there is at least 3 or 4 threads on exhaust that are active right now.

 

umm, you can get that single racing exhaust from racingbeat. It's suppose to be loud, be gains are better than most and it's lighter.

 

Actually, according to thier own site, you will only gain 3.5 hp with thier complete "racing exhaust". You can get a Borla, Greddy, or any exhaust you want and add the RP Supercat with better gains. The weight difference is 14 lbs which is insignificant on a 3k lb car.

 

Definitely the cat is the part of the exhaust you want to modify. Greddy, Borla, or Racing Beat cat back won't give you significant gains one or the other. All are right at around 3-4 hp. Any vendor that claims anymore is BS'ing.