We have the two turbochargers from the APS kit on our flagship G8 up for sale. They're Mitsubishi TD06-20Gs, and are rated for up to 400 WHP each. We made 723 RWHP with them on pump gas @ 11 psi of boost. They are in good condition and have 11,000 miles on them. These would be an excellent starting point for someone interested in fabricating their own kit. The price is $1,500 shipped for the pair.