Skunk2 O2 Sensor Extension Honda Civic Si 06-15 DC Sports Outer bushing is combined by

Outer bushing is combined by TPV material anti-dust boot

and provides a wider field of view

the compressed recoil creates more negative pressure in the sealed cleaner box

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Skunk2 O2 Sensor Extension Honda Civic Si 06-15 DC Sports Outer bushing is combined byThe Skunk2 O2 sensor wire harness extension is designed for the '06 '15 Civic Si. These extensions are great for installing an aftermarket header where the OEM O2 sensor wires are not long enough to reach the new bung location. Designed for the Skunk2 header and exhaust.