Skunk2 O2 Sensor Extension Honda Civic Si 06-15 53540-S04-013 Spoon�s 2-1 downpipe is designed

Spoon�s 2-1 downpipe is designed to provide a wide torque band and is ideal for use on the street or track

Genuine Honda oil pump timing chain guide

help put the finishing touches on your engine

Made from durable materials including a steel frame and high-density foam padding

Alpha Series Rods are forged from select 4340 chromoly steel and feature an H-beam design

Skunk2 O2 Sensor Extension Honda Civic Si 06-15 53540-S04-013 Spoon�s 2-1 downpipe is designedThe 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.