Chap on audi-sport.net has managed 260bhp from a 1.8T using an E-Bay exhaust manifold, a Nissan 200SX turbo, Vauxhall C20 LET injectors, Golf VR6 MAF and a Golf AGU ECU.
K04 turbo is a non starter as it won't work with the Passats in line engine layout.
Last edited by Oranoco; Nov 23, 2012 at 05:11 PM.