im sure this has been posted up several million times.. BUT IM GETTING MY GREDDY SP2 EXHUAST! ive read and read all about the diff. exhuast and i think greddy is the way to go. i agree that RB. is made for the mazda since the day rotary came into mind. but im stoked hope it sounds great.

 

I HAVE THE RACING BEAT EXHAUST. i like it

 

with the catless race pipe how much louder is it? i do alot of highway driving.. i know lots of miles.. but is it much louder with the catless?

 

a lot louder, and a lot less deep sounding. it becomes rice city unless you have a turbo or big resonators

 

It is much louder. It draws quite a lot of attention, and can get annoying after awhile. I had a hi flow cat, but it died, so I now have a straight pipe. I REALLY miss my hi flow.

 

Moostafa, checkout our dual resonated midpipe, super quiet! Scott

 

Will you trade?