Like some advise. The 6sp auto in my S is doing weird shifting and everything I read points to the valve body. RevMax in Charlotte has a re-manufactured unit and seems to be the ticket. Anyone here ever replaced theirs and could give me some pointers?

Also at 145,000 miles I know its time for the supercharger to be re-built. But for about 400.00 more I can upgrade to a New JCW supercharger. Is it worth it is my guestion and what if any mods need to go along with it? Can't find any info on the difference between the stock and the JCW unit.

An no I don't want to get rid of my R53. lol