Originally Posted by jsears
I am running 93 octane in the JKU. The Superchips Flashpaq gives you a supposed +18HP/+22TQ if you run the 93 octane tune.
While its not leaps and bounds faster, I do notice the performance distance, and with the tune I am seeing a +1MPG.
That would be from the increased timing in the tuning. The higher octane fuel allows more timing to be used, giving you more power and mileage. (I'm less knowledgeable on gas tuning... I tune my own diesel truck, added over 250 rwhp with a tune