When reading up on lightweight flywheels for these motors it was mentioned that the flywheel in these cars are intentionally heavy for better driveability with new/inexperienced manual transmission drivers. Just rev your Versa up and see how long it takes to come back down to idle, it's nuts. Versaspeed says the OEM is like 30.4 LB's or something like that, and their lightweight one is 11 or so. Frankly i'm just waiting for either my tranny or clutch needing replacement as an excuse to put that lightweight flywheel in there. Deffinitely more responsive then! Then again, i also just sunk $2500 in more parts for my 928 S4 project car.