im well aware of this thats why i said that he would need one for whatever motor he has whether it be a d/b/h/f/k series motor and full race has kits for all except f series motors..actually i guess that was another thread..but yay here is the link for the d series motor...and the d series motor is definately a underated motor and alot stronger than most think....i would keep a d series if i had it and boost it w/o question

www.full-race.com