The SPEC Stage 5 clutch kit is a single-plate clutch solution for select BMW models, built to handle elevated torque compared with lighter stages. It lists compatibility with 2011–2013 BMW 335, 2011–2016 BMW 535, and 2012–2017 BMW 335i (F30) and requires SB55S-2 or SB55A-2 FW. The Stage 5 kit suits heavily modified street cars needing strong clutch capacity while remaining a single-disc setup.
Spec 11-13 BMW 335/11-16 BMW 535/12-17 BMW 335i (F30) Stage 5 Clutch Kit (Req SB55S-2 or SB55A-2 FW)