FMF Powerbomb Header Yamaha YFZ450R '09 22 & YFZ450X '10 11 044298 ShinkoDeMayo The new shape is super Model:TTR230 ('05 – '24) The new shape is super light but so strong that 100% of the TMD chain guide mounted Honda 450's finished the brutal Dakar Rally in 2011 14 Superior light weight cutouts and sprocket protection make this the hot setup for your CRF 150R The supercross version is designed for more low to mid range power where the moto version is focused in the mid to upper RPM range the PowerBomb is a "pre muffler" of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases)