Which tune will give me the best results 87-93 or the 93-91? Also how does the computer sense the difference in the octane level?
Which tune will give me the best results 87-93 or the 93-91? Also how does the computer sense the difference in the octane level?
04 SC Sierra 5.3L- 40 series Flowmaster w/ 3.73's and limited slip from the factory, 2/4 drop & 20's--- Nelson 93 Octane Tune
I got the 93 hot tune and absolutely love it. It will yield you the most power gains and get you at least the gas mileage you got before. I can hammer it all day and still get at least the same as I did before! What other mods have you done?
Chris
2009 Silverado, HPTuners, all stock.
It is an 04 5.3L and its all stock except 40 series flowmasters.
04 SC Sierra 5.3L- 40 series Flowmaster w/ 3.73's and limited slip from the factory, 2/4 drop & 20's--- Nelson 93 Octane Tune
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