BC Racing ER Series Coilovers (True Rear) for 2017-2021 Honda Civic Type-R FWDBC Racing ER Series Coilovers for the 2017 2021 Honda Civic Type R put race grade adjustability in reach of the serious track day driver, with independent compression and rebound tuning at every corner. Every kit is extensively tested on the Civic Type R chassis and refined until it balances ride quality with performance the reason Civic Type R coilovers from BC Racing are the best selling adjustable kits in their segment worldwide. ER Series kits run