im new to the h series motor,got one of a trade and since i have some extra cash i wanted to see what i can do.first of for a stock h23a1 how much boost can it safely hold?and if anybody on here have one on a ek hatchback?im doing research on HT and other site but just wanted to ask Ia.i have 2 routes,keep the stock d series and boost it which woud be cheaper to do or swap it out and boost the h series which yields more rewards?