Mitch's Auto Parts has custom made a tucked engine AND charge harness designed for the MR2 Spyder based off the 02-04 RSX Type S harness. This is needed to complete your K series swap on your MR2 Spyder. Since the OEM was discontinued, we had our own designed for the MR2 Spyder swap. Can work for both K20 or K24. Many customers have commented on the difficulty of locating a quality harness that has not been manipulated, therefore we are now providing NEW harnesses that are sure to work without the electrical nightmares of tracing shorts and broken connections. This is compatible with an RSX ECU (with or without Hondata), AEM plug-in EMS and the soon to be release Link EMS for the RSX.