Thought this might be of interest to those who are interested in moderate noise levels compared to the nur specs of the world:



The APS and standard readings are on my MY02, the STi7 readings were taken tonight on a local friend's car. I am presently struggling to stop using the APS from 4-5k where it sounds awesome, especially through the Dartford tunnel. Great system, makes such a difference to the way the car goes, always sounds nice and throaty but not overly loud, and with a sports cat, there's no CEL or emissions issues either.

More will follow as the car is in at scoobysport next week to get up-pipe and ported headers, will take readings again after that, and again after the TEK2. Once I've spent several days just driving around like a nutter with a big grin on my face, that is!