I have a 09 rzr 800 na with looney tuned duals and a dragonfire intake. I just got my PCV and autotune in and need to know what AFR I need to run at. Anyone help me out???
oh i definetly don'r recomend it, he just asked at what point to start worrying.17:1 ? better go ahead and buy a new piston, your gonna need it.