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Okay all you C5 exhaust guru's.... I'm going to be installing a set of TPIS headers, Magnaflow x-pipe and "NO CATS" on my 04 Vette. I've some ro find out that no one make O2 sims for my car.
Do I have to buy a Diablo hand held tuner to delete my rear O2's or do I need to have the car tuned at a local shop ?