Anybody ever tried to buy new Banks turbo exhaust manifolds? I'm putting together a 6.5 and would like to turbo it. I see all kinds of good used GM8 & GM6 turbos on ebay that I figure wouldn't be too hard to adapt to Banks manifolds. Ebay seems to get a regular supply of GM turbo exhaust manifolds up for auction, but I'd like to keep my heater box. So I figure the banks manifolds would be the simpliest route. And adapting the GM8 turbo would be a better option than the turbo supplied with a banks kit.