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Message: <blockquote data-quote="Droberts" data-source="post: 2118952" data-attributes="member: 13839">longtime subaru owner here, i do my own mechanic work on turbo swaps as well.biggest advice i can give you is 1. check your oil level at every fillup.2. dont launch if you cant afford a new trans.the mitsubishi TD04L turbo shipped stock with a lot of subarus will boost good at low rpms at about 6psi & will help with driving around town, but will have greatly diminished returns past about 4000rpm.the mitsubishi TD05H turbo can be swapped in with any factory TD04 non-sti subaru turbo & will provide high end boost from 3200-6500rpm, the stock wastegate on the td05h is capped at 10psi, but the turbo itself is capable of 19psi. ($550ish ordered online from hong kong)[ATTACH]27547[/ATTACH]if you want good power put putting around town a normal subaru turbo will do for you. if you want to maximize boost under top speed go with a turbo trimmed to provide boost at higher rpms.keep pressure on a stock boxer block under 20psi to avoid cracking it. 50psi GT's will blow your engine.get a plain'ol wrx and swap in a turbo with the trim you want imo. will save you some cash.</blockquote>