The South Bend Clutch 2009+ Audi A4 2.0L Turbo 4140 SMF Flywheel is designed to provide superior performance and reliability for your Audi's 2.0L turbocharged engine. This flywheel is made from 4140 steel for maximum strength and durability. It features a sprung hub design for smooth engagement and disengagement, as well as a 6-puck ceramic button clutch disc for increased torque capacity. This flywheel is designed to provide your Audi A4 with improved acceleration and responsiveness, allowing you to get the most out of your engine.