i just thought i should share this.. i was almost hame from buying my tog's from brookfield and was around carbondale exit on I-57S and this blue 4door car comes up with his buddy looking at by gtp badge and shaking his head up and down like it is lets get him .. so we slow down to about 50 and we slowly speed up to about 60 and he jumps on me by about a half a car then i put it down and by the time i hit 110 i was about a half car ahead of him.. i wish i could have stayed in there cause he might have been pulling back slowly but i had to shut it down and take my last exit to marion. <_< i could see the pain in their faces as i pulled away from them..lol. it was the same model as the 2000 audi s4. by the way only have 3"from 3/4 down pipe all the way back to flow masters and 5" chrome tips, k&n drop in filter and air box mod.. just think the headers were in the back seat.. if they were on man i really would have smoked him :lolsign: