i have an rx2 streetport 48 idas and i was wondering what is the best exhaust set up i should use?? thanks

i bought the universal pre silencer and rotor muffler from racing beat in 3 inch

 

Mine I ran dual presilencers to a racing beat muffler for a nice sound and got rid of that awful lawn mower sound. Not everyone will agree but I'm old what do I know.

 

That's a hard question to answer. Exhaust is a very complicated subject on a NA rotary. Exhaust systems will always have some give and take. The compromises you are willing to live with will determine what the " best" system is for you. Here's an informative thread to get you started.
https://www.rx7club.com/naturally-aspirated-performance-forum-220/informative-exhaust-tuning-what-part-system-actually-tunes-883371/

 

I would go 2-1 I hated my dual exhaust setup. The 2-1 sounds and performs better.

 

2 to 1 exhaust with racing beat pre-silencer. Apexi WS Turbo Universal Muffler (80mm inlet).

 

2.5" w dual magnaflow mufflers inline,3" is a bit big unless u plan on going turbo...

 

thanks everyone for the info happy holidays