I just got the MS kit put on my lighting 8 . I was wondering if I should just keep the stock exhaust tip or go with something a bit larger. Does anyone know the Rx8 exhaust dimensions for the OEM stock exhaust, and should I go larger ? If so .... what dimensions would you suggest ?

 

by ms kit you mean what?

AFAIK ther's not any performance gains at all on the ms stuff, or any other aftermarket exhaust so far. you just get a diffrent exhaust note. Now if you are going FI then it'll make a diffrence.

 

Thanks for the information. This in not for performance gains .

I have the mazda speed body kit . Im just looking for exhaust tips that would look better from the rear view. I feel like the stockOEM Pipes look a little small .

 

racingbeat exhaust also looks and sounds sexy, but do a search on exhausts, your bound to find hundreds of threads

even the MS exhaust is too small for the MS kit

 

I went and listened to the Mazdaspeed Exhaust at the dealer and I had their car run next to mine (when I had a stock exhaust) and there was very little difference between the two. The MS exhaust is like 600+dollars. You can get the far superior, IMHO, Racing Beat Exhaust, for less money and it has a very pleasant exhaust note and RB claims a very small horsepower increase (like 4) whereas the MS exhaust is none and the tips aren't that bigger than stock. The RB exhaust tips look aggressive but not overdone.

 

Thanks for the information guys !