BMW M50 M52 S50 S52 7.25" Flywheel S63TU4 which uses a 22mm pin

which uses a 22mm pin diameter and saves 50g on piston weight

Each disc features a 4-paddle design and is constructed using a proprietary ceramic-metallic compound

This cooler is constructed with cast end tanks and precision CNC-machined aluminum quick disconnects for use with the factory intercooler piping

as shown below

Using ARP connecting rod bolts ensures that the connecting rod bearings

BMW M50 M52 S50 S52 7.25" Flywheel S63TU4 which uses a 22mm pinTilton 7. 25" Flywheel for BMW M50 M52 S50 S52 Looking for a lightweight flywheel upgrade that bolts right into your OEM BMW manual drivetrain? The Tilton Engineering 7. 25" Flywheel is a direct fit performance upgrade for M50, M52, S50, and S52 engines using OEM manual transmissions. Weighing in at just 7. 9 lbs, this flywheel is designed for serious performance gainsfaster revs, quicker throttle response, and reduced rotational mass. Whether you're