Hey everyone. I am in the process of swapping in a tranny from a 98 M3 into my 325is. It's in the shop right now and in the process of having the tranny swapped, I am also replacing the clutch with an M3 clutch and the stock flywheel with a lighter alluminum (this flywheel weighs 10 lbs as opposed to the stock 25.5 lbs of the stock flywheel) I was wondering what causes the "clicking" noise with the alluminum flywheel. Also, does anyone here know if flywheels wear out? Also, with these parts, I would have quicker acceleration, correct? I am also aware of the fact that I would be getting more horsepower to the rear wheels since with the engine has less rotational weight, ect.. anyone know how much hp this clutch might add? Thanks, brohams.:flash: