them mitsu parts are not cheap at all. mod toyota or nissan is relatively cheaper.
proton parts is even costlier. modding a campro engine is a lot higher considering the reliability of proton parts.

got people ask why mod a proton is for richfag. richfag ler a campro engine blow sure gonna burn more with no halfcut and parts sky high.

campro BOT not gonna last long. the campro engine in itself isn't very hardy.
got people swap with 4g93t from lancer gsr ck cm5a. gsr terbalik one.
got people ok, got cases plague with problems. i have friend plague with problems. first BOT campro engine. then swap with gsr ck, plague with problem. rarely driven now.

mitsu halfcut is even more expensive than 1jz/2jz, sr20, 4age.
so yes, mod a proton is for richfag.