BC RACING COILOVERS ER SERIES - BMW 4 SERIES G82 M4 21+ (COMPETITION AWD) (TRUE REAR COILOVER)The BC Racing ER Series is a high performance coilover system featuring external reservoirs and completely separate compression and rebound damping adjustment. It builds on the proven quality of the BR and DS Series but adds far greater tuning control, making the ER Series ideal for drivers who want more precise handling balance on fast road cars and track focused builds. Key Features Digressive piston and damping curve External reservoirs with 30

4 (1990-1993) are precision-built in-house

0 TSI VRS 2008 - 2012

Mini – Cooper SD – 2

0 Touring (1997-2000) are precision-built in-house

this ACUITY hall effect sensor uses a contactless design that is highly resistant to vibrations

developed and manufactured in-house at Turbo Technics

0TD (1999-2002) are precision-built in-house

0 ST220 (2002-2007) are precision-built in-house

Back-to-back comparisons against the factory elbow on RacingLine's flow bench reveals an impressive improvement in airflow

Kit comes with:

Outlet: 11mm

Each disc undergoes a thorough chemical wash