Description This listing is for:  1 x Genuine Stomp Pit Bike CRF70 Twin Pipe big bore Race Exhaust  (Does NOT fit bikes with CRF50 plastics, i.e. SS120 / Boyo / DXR)  Precision engineered twin pipe kit for WPB & Stomp z140 bikes. Consists of chrome plated front pipes & alloy oval race mufflers fitting kit. Due to the left pipe being slightly longer, the exhaust pulse timings are different for each pipe which gives it a very unique sound, almost like it has twin cylinders. This pipe will also increase low end torque giving your bike plenty of grunt. Will fit various Stomp, Demon X & Welsh Pit Bike models as follows: – Stomp Z140cc   – Stomp Z3 140cc – Stomp Z3 140-R – Stomp Z3 160cc – Demon XLR 140cc (Not DXR, DXR-2 or XLR-2) – Demon XLR 160cc (Not DXR, DXR-2 or XLR-2) – WPB125 (NOT WPB Race 125) – WPB140 (NOT WPB Race 140) – WPB160. (NOT WPB Race 160)  Please note this kit does not fit the earlier 2009 WPB/stomp bikes (if unsure which bike you have please call us)  ** Please check out our other listings for many more Genuine Stomp Components**