Motorspec O2 Sensor Spacer. A must have for any high performance engine and exhaust combination. Zinc plated for higher corrosion resistance. When you have a decat or sports cat fitted, due to the increased exhaust emissions, your ECU will often show a check engine light (MIL/CEL) believing that your stock catalytic converter isn't functioning correctly (and would you know it's right).
The O2 sensor spacer physically moves back your secondary oxygen/lambda sensor to fool the ECU into believing that there are less emission gases present and that the stock cat is functioning correctly. Simply fit your spacer, reset your ECU (by briefly disconnecting your battery) and in most circumstances the problem is now resolved. Please note that there is no guarantee with O2 spacers, while we believe our fitment is the most universal application which works for most engines - some vehicles may require fully ECU mapping in order to be able to get rid of the engine light.
It's important to note, some vehicles have very little space to fit the 4.5cm spacer, in which case we advise the 90 degree version. This is the case with Vauxhall Corsa/Astra, but not an issue with many Japanese vehicles including almost all Honda models. If you want to be doubly sure before ordering, check you have enough space to move back the sensor.
In basic, any M18 O2 sensor thread with around 4.5cm of additional space parallel to the oxygen sensor - this is the vast majority of models. Contact us to see if we can advise directly for your vehicle.
- Thread Pitch: M18 x 1.5mm
- Overall Length: 45mm
Motorspec take huge pride in the quality of the products that we create, because of that we are able to offer a hassle free one year guarantee on all parts sold.
If a part did happen to break or stop working as intended subject to normal use, when evidenced it will be replaced completely free of charge. We understand that sometimes a part can't be returned before a replacement is received, and that is why we're happy for you to create a replacement order that will be refunded as soon as we receive the damaged parts (within the UK we'll even refund your shipping costs)- buy with confidence.
- 14cm (5.5")
- 14cm (5.5")
- 4cm (1.5")
- Actual Weight
- 0.11kg (4oz)
- Dimensional Weight
- 0.12kg (Air Freight Minimum)
All weights/dimensions have been checked and confirmed by our warehouse team. This part is eligible for international express air freight shipping.