ok so I have 2 questions


first, I'm running an ottp stage 1 tune with the 2.8" pulley that comes with it would I be safe running a 2.6 inch pulley on that same tune? of course I'm putting on all the necessary cooling mods to???


second, when its cold out say around the 50's my car will hesitate bad, I will be trying to go and there will be nothing there and than it will go and hesitate and start jerking like I'm trying to kill the car is that normal???