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So I've really been wanting to tune my SS, but am hitting the issue of voiding warranty. Was talking to a guy at Luke's on thursday, and he suggested looking at SpareECM (seller) on eBay, and picking up a spare for approx $150, throwing it in, and tuning that ECM. Has anybody ever done this? ALSO does anybody know if I can get a 2008 Corvette ECM E38 and throw it in the SS? I've heard rumor that they won't match up. Help!!