i have an RSR exhaust and have ITR cams, JDM 4-1 header, carsoundcat waiting to go in. will the RSR exhaust hold my performance back? should i switch to a bigger exhaust like the N1? or is the difference negligible with my mods?


Modified by inteGSR at 6:22 AM 12/19/2003

 

the difference will be slim on a stock car. once you get your cams, im sure you know that you should compliment it with an upgraded valvetrain, intake manifold, vafc, cam gears and some good tuning. i feel that the rsr exmag that you are referring to will not give you as much gains as other exhuats in the market once you've 'completed' your desired setup.

the rsr bpipe is 60mm, about 2.3", is good for a NA motor but in the end the curves in the rsr bpipe and restrictive muffler all add up.

 

I saw no change on the dyno when going from DC Sport to RS*R, and the RS*R is very quiet - like stock.

 

On an NA setup, you should be fine up to 200 whp. I don't see the point of spending the $$ for a 2.5" setup for a very slight gain if any and giving up the close to stock noise level but with a deep growl. My RS*R w/ carsound does not sound stock