as far as i know theres only one size gm turbo for the 6.5 and i could try and round u up the rest of the parts but the price my go up alot for all the other parts, i know gm sells the lower oil return for 25 dollars but the upper returns 120 dollars, oil supplie lines 85 dollars, and the exaust manifold is 410 dollars new, will 100 dollars for a use one for a used one. then u will still have anther 75 dollars in gaskets.