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QA1 make adjustable front semi coil overs.
Some people are concerned with the security of the lower mounting, although I know people running them that have never had a problem. I have just bought and will fitting a set myself when I get round to it.
You lower the rear by lengthening the bolt between the end of the transverse spring and the trailing arm.
The front is lowered by cutting the coil spring down.
VBP makes a transverse monospring for the front that allows you to adjust height. Over what range I don't know.
.............about lowering the front by cutting down the coil spring. It's kinda a trial and error process so you get a lot of practice installing, removing, installing, removing,...etc the front springs. Really a whole lot of fun.