RACEPAK part #220-VM-AF4-1357, 4 channel Air/Fuel module and harness (includes O2 sensors) for 1-3-5-7 cylinder layout, and part #220-VM-AF4-2468, 4 channel Air/Fuel module and harness (includes O2 sensors) for 2-4-6-8 cylinder layout. Connects to RACEPAK V-Net cable of RACEPAK V-series recorders. All sensors have 13" pigtail cable, and the controller has a 37" cable for attachment to the sensor. New, never installed (one O2 sensor package opened). List price for new modules is $1588.95 each ($3177.90 for both). $2500.00 for both modules complete.