Got the EPA check done on Friday at Exhaust City in Cheltenham and am very pleased with the result.
My car is right on the 90dB limit at 4875 rpm.
At 4000 rpm its 94dB and even louder on decelleration, but this doesnt matter.
Now I have a certificate to send in and it only cost me $27, which although is still a pain is not as bad as it could have been.
Paul from Exhaust city told me "You have the perfect exhaust system for your car".