Walker 250-54064 4-Wire Air/Fuel Ratio Sensor

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Price: $113.58    

Product Feature

• Air fuel ratio sensor
• Increases engine response
• Lowers emissions
• Direct fit connectors
• Easy installation

Product Description

Oxygen sensors are designed to determine the oxygen content of exhaust gas. A properly functioning oxygen sensor will improve fuel economy, increase engine response, and produce lower emission. Walker Products assembles all of their sensors to meet or exceed OE specifications. Walker Products supplies OEM based direct fit sensors to help speed up installation and make replacing a sensor a very simple project. The Walker Products O2 sensors are form, fit, and function to the original unit in your vehicle. This oxygen sensor also plays a key role in keeping your catalytic converter healthy. Maintaining properly functioning O2 sensors in your vehicle, reduces repair costs down the road from bad functioning catalytic converters. A new oxygen sensor will pay for itself in gas savings alone as well as reduce emissions from your vehicle. Walker Products is a ISO9001/TS 16949 certified company. Assembled in the USA.

Walker 250-54064 4-Wire Air/Fuel Ratio Sensor Review

I put this on my 2011 WRX. It really senses the heck out of the air to fuel ratio. I think. I mean, I don't have any way to verify its results, but the little light on my dashboard turned off, which was all I really wanted.

I almost gave it 4 stars because one of the wheel studs snapped off when I was trying to install it. But it turns out the car works perfectly fine with only 4 lug nuts on that wheel.

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