Tomei O2 Sensor Bung And Plug 51220-SNA-A03 simply attach it over your

simply attach it over your existing mirror using the included adhesive

This throttle body improves output by increasing the flow area and increasing the amount of intake air by enlarging the butterfly diameter

dual valve springs as well as allow F20C/ F22C engine to use the K Series valve springs

Even under intense stress

oil leakage through the seals is inevitable

Tomei O2 Sensor Bung And Plug 51220-SNA-A03 simply attach it over yourThe use of an A F sensor and gauge is an indispensable tool for engine tuning. To acquire the A F reading, an O2 sensor needs to be installed on the exhaust manifold or the front pipe, along with installation of A F gauge. This O2 sensor bung is then required in order to installing an O2 sensor on your car. A bung plug bolt is also included for when the O2 sensor is removed.