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I'm thinking of having my S4 4.2 V8 chipped by superchips. Can anybody give any advice? Warranties worry me.
Chip 4.2 without any another tuning is bad idea. You won't feel difference between stock car.Originally posted by wiseman405@Apr 17 2005, 11:44 AM
I'm thinking of having my S4 4.2 V8 chipped by superchips. Can anybody give any advice? Warranties worry me.