RM Racing Electronics – Specialists in Motorsport Electronics We provide affordable standalone ECUs, ECU remapping, and plug & play ECU kits for racing and performance cars. Our engine management systems cover Mazda MX-5/Miata all models, BMW M50, M52, M43, M42,M44, M60, E30, E36, E46, E39 and more, VW Audi 1.8T M3.8.3 AGU AEB, ME7.5 Honda OBD1 & OBD2a Featuring the powerful RM-Primis Standalone ECU with advanced ZF 8HP transmission controllers, we deliver cutting-edge racing electronics and track-proven tuning solutions for both road and motorsport applications all developed and Manufacture in house. Several PSA Plug-in Standalone ECU's Available.