The Precision Raceworks BMW E9x/E8x T-Map Extension Harness is an excellent way for extending the length of your existing harness for the charge pipe T-Map sensor without having to cut and splice any wires. 

Additionally this harness adapts your OEM map sensor wire to a 3.5 bar map sensor connector.  An absolute must for our  and from our company or any other company offering a pipe that relocates the map sensor resulting in the need to extend the harness.