Like Hatemi said. I was going to use one on my 2.5TDI. I was still afraid how laggy it would on my "big block" and went for a compound system. I still have it in my garage. Nice modern VNT, but for drag racing only for 1.9TDI or LP turbo for a compound system. Capable for close to 3bar and 400bhp on 1.9.