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Old 11-17-2010, 01:53 PM   #2
mikeSS


 
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Drives: 2015 c7
Join Date: Nov 2009
Location: MI
Posts: 7,464
well people will say that you can run LTs without a tune, but you will have a check engine light come on, and the dealership will have a problem with this. it only makes sense.

you should get a tune to make the car run good with huge gains, and take care of the codes.. that could void your warranty. but its not 100% your going to void your power train warranty. its all about the dealership.

i would get kooks, or ARH headers
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