No, planning to keep the torsion bars, my specialist will be fitting them and doing a geo and he mentioned the torsion bar 'may' need re-indexing but won't know until he's fitted them.
Use is part road car part track (fun) car, not a serious competitor or anything.
I took a bit of a punt on them, mainly because my current standard 16 year old suspension is pretty tired and i'd heard Leda weren't bad as an upgrade (my specialist used to run them on his 944 track car) and these are pretty new and haven't seen many miles and together with M030 bars and all the bushes (again hadn't done many miles) all for a bargain amount (circa $750 dollars) delivered to my door thought it was worth a go at that price. Other option was KW's but you are nearer $2k for those.
Also came with a free set of klaindustries solid top mounts that look new......... not sure if i'll use them though.