HIAORS 28mm Motorcycle Exhaust Muffler for SDG SSR Coolster Lifan CRF50 XR50 KLX Thumpstar TTR YCF 50cc 70cc 90cc 110cc 125cc Chinese Pit Trail Dirt Bike Parts Blue
- See fitment guide image for additional Machines this item fits. Fully tunable exhaust system allows the user to change from a race exhaust (46mm Race Tip) to a forest friendly silencer (Quiet Core Insert) with just three bolts..
- Engineered to improve torque and acceleration with an increase of up to 4 horsepower on some machines..
- Lightweight design saves up to 3.5 lbs. over the stock exhaust..
- Included 46mm Race Tip for closed course competition..
- Includes USFA approved Quiet Core spark arrestor insert that brings sound levels down below 96db..