ill get back to you both after next Wednesday night providing I get no check engine lights at willowbank
going from the run flats to the yokohama s drives recently I do understand where your coming from in regards to traction especially with a car that has as much power as yours. I didnt actually realise that you had a roll cage or run flats. I did see a JB3 MT 135 with semi slicks run a 12.6 last time so tires must make a huge difference from 11k worth of mods.