This is a great idea and I was looking forward to see the difference this kit makes on my 09 yz250f. The ignition side is a breeze and works great. The exhaust side was poorly designed and lowers the radiator to sit directly on the header pipe. 1. The added heat of the exhaust onto the radiator overheads motor, and 2. Over time the thin aluminum of the radiator would be worn away from vibration and rubbing. Horrible design. Had to return it.