i have a motoworks s4r exhaust on my yfz450 its awesome i had a carbon fiber gytr but it busted out dont but carbon if you do mx they break to easy but the motoworks pipe is flat out a great pipe you should take a look at it
i am fixing to install a yz426f engine in my friends warrior frame. we are going to tear the entire bike down and start completely over and recoat the frame and bearings hopeing to make the quad look brand new and like it came from the factory with the motor. if anyone has done this or has any...