Welcome to the dawning of a new era for 2-stroke exhaust technology. This new single pipe from SLP features new patent pending Y-Manifold Sonic Technology (YST)™. YST™ allows us to create an exhaust system that flows more productively by eliminating restrictions to more fully utilize the sound wave benefits inherent with 2-stroke engines to encourage its efficiency. This pipe set delivers an additional 6.5 horsepower and saves up to 11.2 pounds of weight. No fuel modifications are required and runs on 91 octane fuel. For more information contact Starting Line Products at (208)529-0244 or visit www.startinglineproducts.com.