I have an 85 with a 12a. The engine is ported as for what kind of port I am not sure .The motor belonged to my brother and sat in a garage for about 8 years. He just told me their big ports. The car has a lot of power. The car has been taken to 10k rpm with no problem.

My question is what will be a good exhaust option? Right now I have racing beat headers with a cheap straight pipe all the way back, the car is just to loud. I love it just don't love the tickets. What would be some of my options to quite it down with out loosing to much power. Is the racing beat exhaust worth the 1000$

Video so you can hear how loud it https://www.youtube.com/watch? v=vt7Kf3cf50Q&feature=youtube_gdata_player

 

Yes the RB SP long primary system is worth the money. This is the dual pipe, dual pre-silencer
center section that merges right at the axle before going over and into the power pulse
muffler. BTW, you can get used ones for less than 1/2 that price and they don't deteriorate much
over time. Keep an eye on the classifieds, they are always popping up for sale. Just remember
you want this one:

RX7 1975-1985: Exhaust - Complete Systems: Street Port Exhaust System - 79-85 12A -