90 degree defouler - Fiesta ST, Focus ST/RS, Explorer ST

90 degree defouler

If you fit a de-cat or high flow sports catalyst to your car, you could run the risk of having an engine light turn on. This is usually due to the fact that the sensor is reading the added exhaust gas flow and it could identify this as a fault. This lambda sensor extension may solve this problem easily

Note: NEVER fit this to the primary Lambda sensor before the catalyst, doing so can cause engine damage.
It must ONLY be fitted to the O2 sensor, which is the sensor found AFTER the catalyst.