8L90 Performance Master Kit with Raybestos GPZ Clutches and Bonded Pistons. 8L90 Stall Converter in many Stall Speeds Available.
8L90 Transmission Raybestos GPZ Master Kit 2015-On (M5U). Comes with GPZ clutches, steels and an overhaul kit with bonded pistons.
RGPZ-019 Master Kit
Year Coverage: 2015-ON
Contains upgraded friction components as well as friction component manufactured with the unique blend of GPZ high energy fibers for ultimate stress and high temperature durability.
Better clutch material, much larger clutch apply area, billet construction and faster spin-up time all add up to a faster / stronger torque converter. 8L90 Triple Clutch 10-1/2 Inch Billet Torque Converter. 8L90 Stall Converter in many Stall Speeds Available.