I am using a Cheetah VB with no low band apply so that band only works in Rev.

I did tear the tranny apart and noticed the KD band was discolored all the way around but biased to one side only. It's a flex band. This was with perhaps 50 passes and 300 street miles.

With more HP I'm sure I don't want to reuse the narrow red but will a wide red be enough improvement or should I try Kevlar?? More surface area with the wide red but won't it have less apply pressure for a given area??

Another 904 question but not band related...

The rear clutch pack, the one with the 4 thin non grooved clutches isn't a shifting clutch. Those things look brand new, no reason to change them this go around is there??