Universal Accessory Harness for the BMW S58 and B58 motors

Looking to install methanol, port injection, or some other accessory on your S58 or B58 equipped BMW and need a switched power source? Then you need our 12 volt accessory adapter! If you need a switched power source to run your aftermarket accessories and don't want to run a wire through the fire wall to the fuse box we have the solution for you.  Installation takes about 30 seconds and there is not cutting or splicing.  Simply unplug the 4 pin connector on the ECU, plug in our fused adapter, and plug the ECU connector back in.  You now have a 12 volt 10amp fused power source that is ready to use. *Includes a 10 amp fuse Compatible with the following: -All B58 Gen 2 motors -All S58 motors