I know I have a 10.5 inch flywheel, but I am upgrading the clutch in the next month or so to a spec stage 3f or a stage 4. I would like to put a alum flywheel in but what flywheel should I buy? Can I upgrade to a 11inch easy? Will a 03 cobra alum flywheel work with no prob? I have a friend who has a extra 03 cobra flywheel from his car. Thanks for any info