Fitted a solid conversion on my 307HDi (bought from dealer) and it's fine. I'd be lying if I said that is wasn't noticeable - I'm very fussy - but the bigger clutch is handy when you're towing a caravan across the Pyrenees. Just a slight change in engine response at very low revs, say 1000rpm, when pottering in traffic.

Essential mod on Transits and Convoys with 2.4 Ford engine.

LuK will tell you they don't recommend the conversions but they sell them everywhere in Europe but the UK.