TTV Racing Lightweight Flywheel for BMW M3 E46 Specifications This lightweight flywheel for BMW M3 E46 (3.2L S54B32) weighs only 5.3 kg much less than the original flywheel! Manufactured by TTV Racing in the United Kingdom it is made of chrome-molybdenum (or chromoly) steel and subject to extensive quality controls. Perfectly balanced it is the best compromise between performance and usability and will bring you a real benefit in drift or grip: the engine revs more easily gear changes are faster and clutch kicks are much more effective. This flywheel is a direct replacement of the original unit (plug & play) for BMW M3 E46 (3.2L S54B32) engines and requires the use of BMW flywheel bolts part no. 11 22 7 805 885. Not compatible with SMG gearbox (automatic transmission).