Description K-series adapter harness for us with the 99-00 Civic (except 99-00 Civic HX). This harness interfaces between the car’s body harness and an RSX engine harness. Available for either 2002-2004 RSX and 2002-2005 Civic Si or 2004-2005 RSX ECUs. Generally the 02-04 RSX ECU is used with the Hondata KPro and the 05-06 RSX ECU is use with KTuner.
