I actually paid alot more than $50 for all that stuff. I paid $150 + shipping for the turbo and down pipes and $100 something for the manifold. I know it does not have the rear manifold, I had to collect those parts to try to convert my stock 3.1 in another car of mine to a turboed 3.1. I am accepting best offers on the whole lot of everything, I don't expect to get $500, I just figured most best offers are usually made at 50% of the value of most things, and around that number would be what i would like to get in return.
