Predator ?

[CGoeschel]

Can I get away with running the 93 octane performance tune with 91 octane gas or do I need to mix it with 100 octane? I read that people were actually losing HP by using the 91 octane tune and since I havent put on my pullies yet I was going to experiment with the performance tunes but dont want to mess with it just to lose power.

 

[03Bra]

I use the 91 pulley tune. I don't have aproblem with it, but I haven't tried the 93 pulley tune. I have been trying to find a way to boost the octane so it would be safe to run the "better" tune? I guess I will see.