Please excuse me if im in the wrong area but it should relate to the gm V6 2.8 turbo.
I would like to build a tune and get my car from 250 bph to over 300 bph.
There are companies that sell tunes like Vtuner but charge a fortune for their computer software.
Are there limitations to building a tune with Hptuner software or can i build a great tune on the E9 ecu thru the obd2 port.
I know i can load a tune thru the softwhere but if i am only able to firm up some shift points and raise the rev limiter, tire size, i would be very disappointed.
Can i build a tune like Vtuner or JZW?