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Tuning a vehicle or changing even one item will void a GM warranty. The tunes are scanned through GM on powertrain claims so see if they have been altered. He is not worried about changing the gear,...

I have a customer wanting to buy gears and change gear ratios on a 2016 Manual trans base model, he does not want any tuning because he has full warranty/extended on his car and tuning voids his...

Thanks for the info sir

I wanted to start using my HPT once again but I need the latest version and dont know where to go for help. My last version is about a year and a half old.
Any ideas where to start?
Any help or...

Have a customer with a new Camaro wanting a custom tune for boltons only. Im not able to read pcm (says security access denied) ?
They bought it new,,drove it awhile and installed headers and cold...

The car leaves fine if you dont touch the foot brake,,the transmission is going into safe or abuse mode,,,all autos seem to do this , I have tried it in several vettes at work with auto trans,,,they...

I have been trying to drag race my car ,,I m a new tuner and have alot figured out so far. 6 months exp tuning
Heads, cam, 3:42 , 2800 stall, long tubes, z06 intake, callaway induction,
...

I was wondering if anyone here is tuning any Corvettes to run on E85 ? I have a few stations around me that sell E85 , wondering if performance gains would be worth the change.

1999 Corvette,...

Im a new tuner and have learned enough to know I dont know enough yet,,,thanks for the info so far,,I will find and buy these books now.

I have been a driveability tech for 26 years and am picky...

I tune mostly Corvettes,,started with my 99 C-5 because I needed to fix my own driveability problems after so called tuners in my area got done with my car,,go figure. They never even drove the car...