SSI's Turbo back exhaust system for the 900 Ace Turbo gained 7 horsepower! You need to go right to the turbo in order to make more power. The stock mid pipe is too restrictive. The new system is all stainless steel and includes the muffler and the turbo outlet manifold. A flex joint and V band is used for a top of the line fit and finish. This exhaust system works great on a stock ecu flash or a tuned sled. Utilizes all factory mounts for an excellent fit and finish. This exhaust system is about 8 lbs lighter than stock.