Originally Posted by trailjammer
I might have access to an '06 450 EXC. Does anyone know if that case is the same for '04 thru '06 RFS motors? I'm thinking of taking pre-paid orders for this case saver. I'll keep you guys posted. Just picked up a bunch of new aluminum stock so I'll be ready to make a bunch when it's time.
Changed in 06 (one part cover, machined deeper to allow for fixed idler gear).
Changed in 07 (became two part, so you can access clutch pack without removing entire cover).
No idea if the actual cover part remained same shape. This would be a question for KTMTalk. I expect DJH knows. I can take pics of my two part 07 if you need.