All the information I can find says to put an exhaust cam from an '03 into the '02 and you get auto decompression. I did this back in '03 and it worked a treat. I have since sold that one and moved on to an '07 450. I recently purchased a near mint '02 and want to auto decompression this one too. My question is what cam can I use for this swap? Does it need to be an OEM '03 or can another year cam be used? Or a Hotcams? All the info I can find is really old so perhaps when people started doing this swap "03 was the first opportunity. Thanks in advance for any information Also, I am not looking to necessarily increase performance. My main goal is auto decomp.