Amazing little mover, getting close to my best times on the track, using only gearbox, clutch and flywheel as tuning (+5%), default ratio.
My best times are in another one, tuned to +38%, all 9 gears close ratio, on the power everywhere, less wheel spin but you really have to be on your toes.
However your wheel specs wouldn't work for me, gets the shakes over 100mph and would dead stop if you clipped a curb, tried a few different set ups, have settled on 185/55-15" "A" slick front and 225/45-16" "B"slicks rear.
Still a bit touchy about curbs but way more forgiving and no shakes. I would hazard I put back in profile about the amount lowered, track curbs are an issue for most lowered cars I've found, On the plus side, it's made me a better driver.

Thank you! :)