Rear camber adjustment range?

[glendog74]

I know the rear control arms on a CSL have a degree of adjustability - to what amount of negative camber can they be adjusted?

I know my rears have -1.6 degrees setup at the moment but i may have to increase that to fit my rear track wheels (18x10.5J) under there...!

I have the chance to acquire a set of the Turner Motorsport camber arms at US price - is it worth fitting them or a total waste of money?

Also, what end would be best, rubber bushed (presumably) or solid?

Turner adjustable camber arms