M52TU/M54/S54 Adapter for E21
M52TU must use MS42 DME
M54 must use MS43 DME (MS45 option now available!)
S54 must use MSS54 or MSS54HP DME
These Plug-and-Play wiring solutions will make your engine conversion a breeze.
These wiring kits use all new components. All crimp terminals and connectors are new. These kits are made with high temperature automotive grade wiring that resist oils, grease, and acids.
Continuity tested on every wire during construction. Wrapped in high temperature expandable nylon sheathing to resist abrasion.
Instruction sheets are included with every harness kit.
These adapters include the following:
- Cluster temperature connector
- OBD2 diagnostic port
- Electronic pedal wiring (M54 and S54)
- Fuel pump wiring and relay
- Sport mode button (S54)
OPTIONAL: Secondary Air Pump wiring and relay
EWS (Immobilizer) delete is required. (Free with harness purchase)
The S54 USA version will require the Timed EKP modul fuel pump relay BMW Part# 61357892976. This relay is not included.