Originally posted by 30%NitroBoy
My former Sirio .18 that use to be HumboltBlazers that now belongs to MasterBeavis (but his ass blew it up) had damn good temps with the stock head. If it aint broke don't fix it (in his slack Jaw voice).
Bigboys my man, If I was gonna get a aftermarket cooling head for a SIrio .18, I say spend the money and get a NOva. I have heard good things about american CNC's cooling heads though (I can't say the same thing about the rest of their products though).