Engineered to make installation simple

aggressive track performance

The OEM FPR is replaced with an RA-Series FPR

Specifically designed for the BMW S54 engine

ZF 8HP90 8HP95 DIY Upgrade Kit Kit:Stage 1 Engineered to make installation simpleUpgrade your ZF 8HP90 or 8HP95 transmission at home with ATSs proven performance componentsdesigned to handle higher torque, improve clutch durability, and extend lifespan without the need to send your transmission in. Whether youre building a powerful street car or prepping for the track, this DIY kit gives you access to the same billet and clutch upgrades ATS uses in house. Available in two configurationsStage 1 and Stage 2so you can match your