I've just purchased a 1997 940. 2.3l turbo engine which has a m90 box with oil squirters and the boost cracked up to 12 psi. I'm looking to get it to run a safe 250bhp and I'm finding a lot of contradicting info online about what turbo,injectors and maf to upgrade too? Ive already got a bigger intercooler for it. Can anyone help me out as I'm a bit of a noob lol,cheers