I have a stock file ill submit for my truck but was wondering who is out there for doing a tune file?
Vehicle is a 2003 GMC Sierra reg cab short bed 4.8, 5 speed, awd (nv149) - Current mods are cold air intake, exhaust, taylor wires and NGK tr55 plugs - Running a 30.5" tire. Thanks in advance!
2003Sierra STOCK.hpt
There are a few of us on here that do it for a living (charge money) but there are some guys on here that will help you for free.
EFI specialist
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I do email tuning but I'm also here to answer questions on the forum should you try tuning yourself.
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Yeah how much for a tune off this file?
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