Leo Vince TT Exhaust for 50cc 2-Stroke Horizontal Engine Kymco, SYM Scooters SPECIFICATIONS: Head Pipe Bolt Hole Spacing: 54mm Head Pipe Inner Diameter: 23mm Removable Silencer Includes Mounting Hardware and Instructional Booklet Also Includes 16×13 Roller Weights in 5.7gr for Further Tuning COMPATIBILITY: Kymco – Agility 50 2T, Grand Dink 50 2T, Heroism 50 2T, Like 50 2T, People 50 2T, Super 8 50 2T, Super 9 50 2T L/C, Top Boy (Cobra) 50 2T, Vitality 50 2T, Yup 50 2T, Yager 50 2T SYM – Jet 50 2T, Mask 50 2T, Shark 50 2T, Red Devil 50 2T LeoVince Exhaust for Horizontal Kymco and Sym Air Cooled 2-Stroke Engines. Kymco models include Agility 50, Bet&Win 50, Like 50, People 50, Super 8 50, Super 9 50, YUP 50, and Vitality 50. Sym models include Jet 50 BasiX/Euro/Sport, Jungle 50, Mask 50, Red Devil 50 and Shark RS 50. The LeoVince TT exhaust is a racing exhaust that works with 50-70cc cylinders. Includes mounting hardware and 5.7 gram 16×13 roller weights for tuning! Please Note: This exhaust is designed to conform to European Road Standards. Removing the manifold restrictor leads to a significant performance improvement. **