Carb adjustments?

Hi all

I'm about to go ahead and get a Beowulf slip-on exhaust (for my k2 curvy)

I've just had a look at the Holeshot Exhausts site, they mention shimming the carb needles and adjusting the pilot screws to get the best performance from their 'zorst, although they still say no re-jetting is needed.

Just asking if anyone's done this to their bike after they've fitted their exhaust?

Cheers all!