BMW E46 M3 S54 CSL MAP Sensor Conversion Kit
The OE BMW CSL software uses a MAP sensor to help determine engine load. Because the OE rail is no longer available and is expensive on the secondhand market, this kit provides a purpose-built, reversible CSL MAP-sensor solution for the S54.
- CNC-machined in the USA
- Tumbled and clear-anodized for finish protection
- New Bosch MAP sensor using the same scaling as the CSL firmware
- Viton O-rings and stainless-steel hardware
- TEFZEL motorsport wiring in OE colors
- Factory-preterminated wiring for plug-and-play connection at the DME
- No permanent modification to the existing air rail
- Typical installation time under 45 minutes
The kit uses an air-injection port, allowing the original rail to remain unmodified and the installation to be reversed.
Requires a full BDM installation of CSL firmware on an MSS54HP DME.