Definitely revs. i have my nt1 geared at the top with 59mm tires and it still bounches off the revlimit lol. geared it up cause the car just drifts everywhere with lower gearing. normally i run 55-56mm tires for qualifiers and even the tallest gearing i can throw in the car just lights em up out of every corner heh. Ive been running quite rich even as i havent had enough track time to really tune the engine outside the baseline heh.

my os pipe has some dings in it but nothing major. not looking for a replacement just yet but curious how other branded pipes work with it. though i suppose os went through a lot of trouble to tune this engine and pipe together, but here in canada there aren't any large permanent tracks to open it up on =(
Wish i had tried my 2630 pipe on it before giving it away.