hi i have 3 door track day car im putting together ,i ordered wheels today team dynamics no real dish on this wheel 8x17 .25 et and 9x17 et .35 & looking to heavily modify steel arches and lip on plastic arch guy said that 35 rear 25 front et would be ok ,but i thought afterwards if i want to get these wheels out as far as i can without spacers would that et be low enough does any of the cosworth guys know how low i can go on et front and rear with these wheels as i want them right on the limit offset wise cheers bo

 

Not the best pic but with spacers on the front this is the same offsets as you have listed, however my wheels are 7.5x17 and 8.5x17 but it may give you some insight in to how yours will sit

 

thankyou very good help that