Most of our customers go for V1
Will you be a person who will constantly be looking for the perfect ride to suit you and keep adjusting the shocks until you're happy, then go for the V3's
One of the problems with the rear shocks is that unless you drill a hole above the shocks you have to drop the shock to get to the adjuster at the top
The nice thing about the KWV1 is there is no adjustabilty, sometimes that can be an advantage, though sometimes very frustrating if you are on track.
Suspension Packages
I would check with the dealer you use on the exhaust via e-mail rather than phone.