just looking to see what catbacks most RX8 owners are using. I am considering the Greddy SP2, and I am looking to see who all are using this exhaust.



Trev

also, has anyone used the OBX exhaust?



Trev

I have a large list of catbacks for rx8s on my website.

we've got a customer with the greddy, its one of the louder ones.

Greddy is always loud. More on the rice side IMO. I dont know how far you want to go. But if I was serious I would just take the cat out and tune the ECU. If this is not an option RB would be my only choice.

the mazdaspeeds sound real nice too, kinda like what stock SHOULD be, ie its a little louder and deeper, but if the car came that way nobody would complain

I didnt even know MS had one yet.

There are 3 facts that make the Mazdaspeed exhaust a good choice.



1. The tips. They say "Mazdaspeed" on them which makes it look like your car was professionally tuned giving it the louder sound from engine instead of just louder exhaust. Also, they are bigger, but not too big. If you have huge tips, everyone thinks you just put exhaust upgrade, not engine upgrade.



2. When you install it you keep your warranty because it is a Mazdaspeed accessory. If you put a different company exhaust on and something goes wrong, the dealer can say it must have been the aftermarket exhaust (even though I doubt an exhaust could damage your engine).



3. The exhaust itself gets a 1 year warranty which includes installation if installed by official Mazda dealer.







HERE IS A VIDEO OF IT





It is quiet but with a high flow cat and aftermarket intake, it would be a lot louder.

they have 2. one looks exactly like stock, but sounds better. and the other looks like RB but isnt as loud as the rb

were's judge ito, hes done lots to the rx8's

catbacks on the rx8 are a lot of money for 3-4 hp...

yeah, if that. although some of them do sound better

I'm runing the Greddy SP2, it's damn near as quiet as stock at idle. Gets a little volume as you give it gas, has a deep sound, but never gets really loud ie. the cops won't be bothering you. All in all I really like it. It's also all Stainless Steel and won't rust like the stock POS...

i just got done with porting/rebuilding an rx8 with a midpipe and whatever aftermarket catback...you STILL can't hear the motor on the freeway with the windows down, unless you're on it pretty good.

I have the RB catback and love it. Also, changing out my exhaust hasn't effected my warranty.... my dealership said "no problem since it's catback".

yea, they say that until you take it in for a warranty claim. https://www.nopistons.com/forums/pub...DIR#>/wink.png

I just got it back from them with a warranty claim.... no probs. https://www.nopistons.com/forums/pub...IR#>/smile.png The service dept at the dealership here is really very cool.... or maybe it's just me. (kidding!)