Description: Replaces the stock tip with this Billet Exhaust Power Tip Designed to improve Performance by reducing back pressure in the stock exhaust system. Produce a nice deep throaty sound Professional installation is recommended Fitment: for Yamaha TT-R90 TTR 90 2000-2007 Dirt Bike Specification: Fitment: for Yamaha TT-R90 TTR 90 2000-2007 Dirt Bike Condition: 100% Brand New Material: Metal Outer diameter?46mm/1.8" Inner diameter?30mm/1.2" Height? 40mm/1.3" Package Includes: 1 Piece Exhaust Power Tip