radiador or exhaust

[yz426ex36]

custom radiador or exhaust for a 400ex frame with a yz 426 motor

[pnut420]

I have a stock 250r radiator that should work ok. I went ahead and got the pro series performance radiator and it was really expensive I sure hope it works like they say, the guy I got the YZ conversion from ran it with the 250r radiator and had no problems overheating.