Diablosport Forums

I was wondering what tune would add the most horsepower, how much horsepower, and what the differences are between the Diablo Sport tune and the 91 Octane tune.

the Diablo tune is made for 93 octane fuel and has more advanced spark/timing - which will give you more power than the 91 octane tune.

...As long as you have access to 93 octane fuel....