Since a quality aftermarket ECU is the ultimate upgrade for the S14 engine, racers, hobbiest and collectors alike have been waiting for years for the ideal solution for the E30 M3.
One that anyone could install, tune, and enjoy without any compromises... VAC is excited to offer a solution for this classic BMW.
Our pre-wired plug and play harness's for the KMS M-25 series ECU is best choice for those looking to take the questions out of wiring an E30 M3 for a standalone ECU.
Individually wired and checked by our in house engineer for quality control, this harness is a direct replacement for your OEM DME harness.
Not just for E30 M3s; great for any vehicle or swap. This harness is made in house and allows a nearly 100% Plug and Play installation of the KMS MP25/MA25 ECU onto your S14 engine.
Simply plug in the included sensors, wire to your crank trigger sensor, and your ready to tune!
Great for-
Big boost and FI applications
Racing & track vehicles
Performance Street Vehicles
Engine swaps
S14 into 1600/2002 chassis
Whatever you can dream to do with a S14!
Start up and base Maps available
Includes all NEW needed sensors
Eliminates OEM distributor in favor of KMS D.I.S. coil pack
Loomed and terminated
OEM oil change and diagnostic port is maintained and functional.
OBC functionality is maintained (code feature disabled)
Each wire checked individually
Please Note:
Due to the popularity of this kit, at times we will need a harness component or core harness to complete a P&P kit. Prices may vary if you cannot supply a core harness.