I was communicating with an Engineer from ACS (Australia Clutch Services) who design and manufacture a large selection of clutches and flywheels for many vehicles. Recently that have released three options for the RS250/265/275, a HD organic, a ceramic and a carbon. All need to use their SMF which is in the kit. I have plans to use my 265 for local rally sprints, and am looking into installing the carbon series. There isn't a lot of race/performance clutches available for the current RS Megane, so having some alternative is a positive. http://www.xtremeclutch.com.au/en/catalogue/xtreme-clutch Simon
Considering the OEM clutch is more than up for the job i see no need to upgrade. I recently had another OEM one fitted and even with my plans for Hybrid I'm happy to run it, If i do ever upgrade it will be to the Sachs unit.