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I have a 1996 GMC Yukon SLT 5.7L. How much does it usually run to modify the ECU to be set for "35 tires, 4:56 gears, cold air intake, by providing optimal MPG?
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---------- Post added at 09:18 AM ---------- Previous post was at 09:17 AM ----------
We are out of San Diego. You could definitely send us your PCM for tuning, so long as it is not locked. Shoot an email to [email protected] and the guys will get you further details.
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