if you source the parts yourself do not even consider anything other then a genuine clutch kit ,Without doubt ,we have been asked to fit all manner of aftermarket clutches to all models of 993 including o.e sachs kits etc from euro car parts and the like and whilst they may offer a good saving over the genuine porsche product (i think 600 plus vat retail at the moment) None of them, have the correct pedal feel./pressure,mostly they are too light with no progressive action to them They are not nice to use. .It is a total false economy unless you are about to sell the car!.We have over the years fitted turbo pressure/plates to n/aspirated cars when the owner has requested (power upgrades in mind)Btw only the pressure plate is different on a turbo.
The important bit seems to be the pressure plate and although the sachs item was oe it obviously is not made to the same spec as the genuine porsche branded item.Currently the friction plate seems to have AP stamped on it ,but made in italy,so it seems sachs are not the prefered supplier at the moment. If you go the single mass flywheel route you will have to buy the parts individually (the pressure plate is the same as the std dual mass set up) you can save some money buy getting some of the parts from euro,but make sure you get a genuine pressure plate if nothing else.
lwflywheel parts required are 1 the flywheel,2 the ring gear,3 the friction plate (with damping springs ,not solid like the std item)4 the release bearing,5 the release bearing guide sleeve,6 flywheel bolts,7 clutch bolts,8 the pressure plate.
Most varioram cars get away with the flywheel without the remap ,early cars almost allways dont.. The lwflywheel is extra noisey on a 4wd car and is not recommended for these models unless you really are a driver and want the last ounce of power, as it really spoils the 4wd cars at low revs/speed with excessive transmission resonance.
on the changing of the dual mass flywheel note ,the std 993 item rarely goes wrong, so i wouldnt unless it was faulty at the time.Also removing the gearbox is not such a big job on a 993 so if it failed later, it wont be a total disaster.
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