ProFunction Automotive | Tuning & Race Engineering | (847) 895-9520
my fave place.
ive been to one 6, im not a fan. mark has his stock of parts, and yea, sometimes he gives you a good price. but for labor.. eh. long story short he put me on the backburners, and i just gave up and went to profuction for the first time.
Pro function is great. really cool people, good prices, and they do really good work. they just upgraded their shops to a new place, with more room. they work on hondas mainly, but i had my suby worked on there too, with great service. id at least drive out there and check them out.
Topsetup i hear is a great place, but i have never been there. their' cars are badass tho from youtube videos lol. i have also heard very good things from friends who have been there.