ok you did not specify your engine type, i am all about details, now some of those guys were close but they could say they know where this information came from, allow me to inlighten you, you did not specify a year either, so we'll start with my favorite year, the 1999 mitsubishi 3000GT came with a 3.0L DOHC 24V V6, which boosts 320HP, you said you had the V4 twin turbo it has 310HP stock from the factory add some parts and you can achieve more than 1000HP. i hope i was of some service to you, good luck.