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Sipple Speed and Performance is now offering OEM Dodge Demon torque converters
MAX EFFORT HP75 Build Service
These are discontinued from Mopar
New output shaft nut
Max Effort HP90 (Hellcat & Redeye) Core:No I don't have a core. Sipple Speed and Performance isSipple Speed and Performance Max Effort HP90 Transmission for Hellcats & Redeyes. We only offer one level of transmission the "Max Effort". These are the race proven, fully built transmissions. Billet E Drums, performance steels and frictions all assembled to SSP's precise specifications. We don't just throw a bunch of clutches in and hope for the best. There is a reason Sipple's Max Effort Transmissions lead the lists online, and the winner's circle