We have done it again! First and only to produce an outlet manifold on the Z1, and doing the same horsepower enhancement on the Procross/Proclimb 1100 Turbo models. We allow the waste gate and turbo outlet gasses to flow together smoother creating less turbulence and more free flowing exhaust. This piece is mandrel bent unlike the stock unit which causes the stock 2" tube to be reduced to 1.8"! This does not help horsepower on a turbo motor. We went big with our 2.25" mandrel bent Turbo Outlet Manifold and the dyno numbers show it! 5-7 HP gain over stock. A must-have especially when turning up the boost.