After doing some digging I found that Kayaba shocks are pretty common on many stock bikes. The ltr450 comes with these stock and I believe at some point the yfz450 did. this is the first time I have seen high / low speed compression. I have posted a similar topic on another more active site and the consenus seems to be that the x-package shocks, after you send them in and get them revalved will be near the level of elkas racing shocks. That is a heck of a price for that if its true.
After taking a closer look I'm thinking of going with the x package. I would be getting the skid plates, nerf bars, handlebars and riser anyways so that would only leave $400 more to get the wheels and shocks...... I've convinced myself that is a deal.. That and I like the black :)
I'm still not sure of the quality of the shocks. If they are 10 lbs heavier than racing shocks then I'd skip on the x-package and buy after market..
I just want a new dang bike and I'm hoping for the ds450(x?)
thanks for the link to kyb..