YES IT WILL FIT! on my NA i got stock header down to a 3" cat ( JSCSPEED.COM) and then to a 3.2" RSR exhaust. yes, they are both too big for my na but im going turbo later. the flanges on all 3 surprisingly match perfect. i measured like 8 times as i also bought a test pipe later from HPF; it fit too. 3" is way too loud, so go HKS 2.5" for na.fotosoup said:
