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I need to know who makes that 438@whp turbo kit for our IS3's cause I cant find it anywhere, or a turbo kit that is of good quality and similiar to the output of the 438@whp turbo kit!!!
Also Who makes good headers for the Is as well as a short shifter!!! Your answers to my questions will be greatly appreciated!!!!!
C.L.S
Originally posted by EmoDragRacer niec numbers... hey do you have DYNO sheets to back thaty up... LOL some ppl give numbers and got nothin to show and prove
Well I think the dyno @ 13 lbs is proof enough, since I drove every day at 18lbs, then 23 lbs at the track. u do the math....