06-18 YAMAHA YZF-R6: Akrapovic Slip-On Exhaust - GP (Homologated/Titanium) Slip-Ons represent the first step in the exhaust system tuning process, and they offer a great balance between price and performance. Change the nature of your bike by adding more power, improved performance, and the unique Akrapovic sound. Everything packed in stylishly designed Slip-On exhaust systems.The GP-styled Slip-On Line system is a high-performance system for race-oriented riders.Made from titanium, a race-proven material.The exhaust system modification results in a boost in perfor It is recommended that new exhaust gaskets and a Power Commander be installed when changing an exhaust system on a fuel-injected motorcycle.Detailed Specifications: Maximum power: Stock - 111.9 HP at 14600 RPM / Akrapovic - 112.9 HP at 14600 RPM / Maximu Maximum torque: Stock - 45.7 lb-ft.