Quote by mark
I would also assume it will effect your payload as you are adding additional weight.
Not sure how much more weight one of these systems would be but worth remembering.
According to the spec sheet the two springs, gauge plate and hoses weigh 8.8kg in total.
Subtract the foam bumpstop type things from the weight and its probably less than 7kg all told.
If there was a compressor fitted it may be a little more.
From my research it improves the handling of the vehicle a lot at the same time.