what would you guys recommend thats moderate on the loudness level thats dual system... i want to get the n1 duals but i know thats gonna be loud as hell, im gonna have 3 exhaust systems so i can change to my liking i already have the OLD SKOOL like early 90's HKS cat turbo cat back.... and im getting a n1 single exit... im looking for something thats in the middle of these too... my hks turbo back is a tad quiter than the RB system.... so i want something thats louder than this and looks good.... hope you guys got what im trying to say.... so far im looking at the RSR GT mag1

 

greddy power extreme from rx7.com

 

A buddy of mine has the M2 cat-back with a DP and it is really quiet, slightly louder than stock. It starts to open up when you smash the throttle. I think that even with DP/MP it wouldn't really be too loud. It also looks like a high quality made piece. I had the rb system on my FD with a DP and i think it was slightly louder than the M2.