Aww man, now I'm gonna have to decide between new rear meats or an ECU tune. Can't I take a rain check on this for a couple more month. I'm tapped out of cash after I pick up some tires, but $450 is a sweet deal!!!

Edit; just to confirm, this is for the 20 Hp upgrade that was done to X'ed's car correct? So I can't run 87 octane anymore, I will have to use premium correct?