Honda 06+ Civic Si Oxygen Sensor Extension Harness 06322-SWA-305
This oxygen sensor extension harness adds 14 inches of length. This is perfect for where an aftermarket header on a 06-11 Civic Si or 12+ Civic Si chassis has the oxygen sensor moved back and this extension is a plug and play solution. OEM Honda genuine part. A cheaper alternative from the aftermarket which can be 3-4 times the price. This may also fit some newer model Honda's.
Part # 06322-SWA-305
06-11 Honda Civic Si
12+ Honda Civic Si