Precise, motorsports level engine management for the advanced S54 engine at an affordable price!

VAC's offers you this "S54 Plug And Play" kit from KMS. Made in the Netherlands, KMS includes a pre-terminated wire harness that's ready to control your S54 powered vehicle.
In E46, Z4, race cars and swaps; this kit makes it a cinch to simplify controlling the S54. This kit eliminates VANOS and Drive By Wire, and offer an affordable and simple way to control a race car. Also makes for a simple swap into other BMW chassis and even kit cars. We have a library of base maps for the S54 engine to get you started quickly as well.
Allows removal of the factory MAF sensor for running with a MAP sensor, or in Alpha/N mode for effective power gains and ease of tuning..

With total control, base map, and a pre-terminated system; you are able to focus on tuning your vehicle properly, so crucial for power and reliability and save great cost over the course of a project.

This kit is an all inclusive package for programmable engine management system that features:

• Complete 3D engine management of fuel and spark
• Lambda-control- self learning / feedback with Bosch wide band sensor(s)
• Flexible idle-control for load sensing, or alpha N setups
• Power shift (separate delay and cut off time for each gear) for fastest lap times
• Engine diagnostics with 2 way communication in software
• (3) auxiliary outputs (shift-light, water injection, cooling fan, etc.)
• Programmable soft RPM limiter
• Launch-control (variable)
• (2) Engine load sensors- blend or simultaneous
• Analogue input (second lambda sensor, gearbox position sensor, etc.)
• Boost-control (for turbo applications)
• Variable Anti-Lag System (also for turbo applications)

(Includes MX25 series: with UEGO , injectors, wiring, sensors, mapping, and all other needed components)
*picture is for example*

VAC Tech Tip:
From customers who are new to the S54, we often get asked; "why eliminate the VANOS?". As is common with variable cam timing engines of all types; once you have fitted larger performance or track cams, the VANOS does not offer the low RPM gains it does with mild OE cams. Even with stock cam, in racing the engine is operated from mostly 4000-8000 RPMs, where VANOS does not offer gains over a locked setting. You no longer need to map and re-map for hours on the dyno with different VANOS positions.

Our KMS S54 System, as installed on an (FIA GT4) M Coupe race car: