Is there any source to get the JCW pulley? I've read here it's a little less than 15%, which is ok with me. I would guess that if you had that one, denying a warrantee claim would be pretty tough.

 

I would guess that, like the standard S pulley, the JCW is a heat press fit which, can be a bear to install properly. I'd suggest going with aftermarket pulley such as Alta.

 

Well, warranty would be just fine if you paid the $6000 it costs for your dealer to install the pulley along with the rest of the kit. . . .

If you install it yourself, MINI won't warranty it even if it is a component of the JCW kit. . . .