Unless using a new flywheel provided by SPEC, existing unit must be resurfaced prior to installation of the clutch product to ensure integrity of friction surface. Owner must also break in the new high performance clutch for a minimum of 450 miles, primarily city and/or stop-and-go driving, before full throttle engagement, drag launching or speed shifting. * FAILURE TO EXECUTE EACH OF THE ABOVE WILL HINDER CLUTCH PERFORMANCE AND VOID ALL WARRANTY!!! Unless otherwise instructed by written notice from SPEC, follow manufacturer’s instructions when installing clutch and flywheel products. SPEC recommends that all bolts be inspected before re-installation, and any bolts that have been removed and re-torqued multiple times replaced. SPEC will not warrant any component failure due to install error.