Replacement lightened flywheel for early pre-Verto cars using early inertia starters (remote mounted solenoid). If you are using the later pre-engaged starter (w/ solenoid on starter) you need C-AEG420. Weighing 9.9lbs, This is a good flywheel weight for a daily driver up to modified weekend warrior cars.
 
A lighter flywheel will drastically reduce acceleration times and power loss at high rpm. But too light of a flywheel will cause drivability issues on a road car. This lightweight street performance flywheel is perfect for a mildly tuned road car as it will improve acceleration and top end power while still allowing for reliable road performance.