I've had the original Suplex (now SSL) fitted for some years now & you can alter the ride height when you fit the kit - it is supplied with a spacer & instructions of different positions within the setup to give different ride heights
But you cannot (well can, but shouldn't) alter the ride height once its all set up as you will preload the rebound springs and upset the ride
Personally I gained a very useful extra clearance on the Roadster sump & lighter steering
