If i could make a suggestion...dont waste your money on octane booster. There have been a ton of dyno reports and tests that show it doesnt do anything. What you might want to do is go up to bandimere with an almost empty tank and before you go in stop at that gas station right next to it and put in like half a tank of race gas. This way you have less weight in the car and have 107octane gas(i think thats what it is). That gas will do tons more than octane booster.