Uprated torsion bars

[mossy1985]

Hi guys, I've recently bought a 6 from a fellow forum member (Callum). It's lowered on spax suspension but the rear is too low for my taste so I intend on raising it to match the front. I took the car down some twisty B roads and it felt that the rear was way too soft compared to the front even with spax shocks fitted. I'm thinking uprated torsion bars maybe the way to go especially if I'm going to be messing with ride height. Can anybody provide me with a current supplier that is reputable???? Also suggestions for what size bar to go for would be appreciated from anyone who has first hand experience of uprated bars

Thanks a lot

Dave