Mahle OE Rings 4.6L 5.4L Supercharged Engines Reduced RW Rings Moly Ring Set for 1999-2012 Ford F-150 and Mustang

MAHLE(R) piston rings are the most technically advanced piston rings in the industry. Driven by OE requirements; reducing friction and ring mass while minimizing engine oil consumption, and providing longer service life. MAHLE piston rings lead the industry for the latest piston ring technology.