I have a '07 997.1 GT3, and I want to fit a Light Weight Flywheel. I purchased an Aasco from Patrick Motorsport (PN: 106411-11) but it does not fit. My crank flange has 9 bolts and a 49.8 mm extension whereas the Aasco has 8 bolts and a 42.2 mm recess (for the extension on the crank).

I contacted PM but they were not able to offer any solution. I checked the Aasco website and it states that 106411-11 is the correct flywheel. Ebay offers these flywheels at widely varying prices, some saying that it will fit the GT3 others saying it will not (but all with same PN).

Can anyone help with a suitable Aasco number for my car?

My other choice is to go to a steel RS flywheel. Again varying prices. Anyone had experience with fitting an RS flywheel to a GT3?

All comments would be appreciated