easy to tune the bosch, the lad with 171bhp and 250ftlbs has a merc e300 garrett turbo, lots of pump work, front mount and some other wee bits. He used to have a 2.1 miami dturbo.
Easy to get 150-160 though if you weld a saab 9000 t25 to a standard manifold and run 28 psi with a hard tune