What heads require the least modifications to put on this thing? I’ve got the rattle and figure I might as well see if something like a 2013 si’s head would fit on so I don’t have to worry about it anymore. I’m not actually looking for power here, just reliability.

Throwing a custom exhaust and CAI on it next month, and I’m moving down to 215/16r60s from the 225/17r65s. That’ll make it sporty enough for me already, but if I’m gonna do new heads, I wanna do it now before I do post-mod tune.