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Hey guys new on here and have a few questions,I’m a transmission builder and also build a lot of hi perf engines but new to the tuning world,anyway ordered HP tuners to tune the newer transmissions and would like to start tuning engines as well my question is I have a customer that I just did an eight speed four and he wants a little more performance out of his 2018 GMC 6.2 does anybody out here have a tune file that I could look at or apply to this one as it is a stock vehicle, any help would be greatly appreciated thanks
