Yamaha TTR110 2008, Offroad Powercore 4™ 1-1 Full Exhaust System by FMF Racing®. The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore...
The latest version of the Powercore 4 design incorporates a hi-flow core which has more surface area to absorb more sound while flowing more exhaustConstructed with an extruded aluminum canister, a stainless steel mid-pipe that is MIG/TIG welded and has space age internal packing