O2 Sensor Spacer

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This oxygen sensor spacer is used to remedy the CEL (Check Engine Light) that occurs when an aftermarket catalytic converter is installed on a modern vehicle.

CNC machined from cold roll steel and TIG welded, our proven design offers fitment flexibilty in tight spaces. To prevent corrosion each spacer undergoes a zinc dichromate plating process.

Installation is simple and reversible. Remove your second oxygen sensor, thread the spacer into your exhaust, thread your sensor into the spacer and lock at the angle of your choice. Anti sieze compound is always recommended.

  • Strictly for use with 48 state legal aftermarket catalytic converters such as the Magnaflow catalytic converter used in our exhaust systems.
  • This product is NOT intended to and will NOT provide compliance with emissions laws or testing.
  • Emissions laws vary by state. Check local and federal laws before modifying your exhaust system.
  • Emissions compliance is the sole responsibility of the vehicle owner.

New Shape + Material

The BULLET points

  • CNC Machined from 304 stainless steel in a bullet-inspired shape
  • 304 stainless locking nut
  • Rust / Corrosion / Forget about it
  • EXACTLY the same internally as our 10yr+ proven design
  • Began Shipping June 2017

Long Story Coming Soon...

Additional Details


4 Reviews

  • 5
    02 Spacer

    Published by eddie on Apr 11th 2019

    worked for me as intended. No check engine light with MAP catted down pipe

  • 5
    O2 Spacer

    Published by James on Mar 1st 2019

    Honestly, I was super impressed by the quality of this product after opening the box, PERFECT WELDS! For my particular application it was sort of difficult to install on the 42DD 2.5" downpipe due to the position of the bung but after bending the heat shield in a little bit it was a breeze. I didnt have a CEL before putting this on (high flow cat application doesnt cause CEL) but I was having a serious issue with a squeak coming from the O2 Sensor rubbing against the heat shield. This is a great product and I highly recommend it!
    -42 Note: Our street systems can still set off the check engine light but not always.

  • 5
    Great product!

    Published by Unknown on Mar 23rd 2018

    No issues with this product what so ever. Top notch quality.

  • 5
    Very nice!

    Published by Steve on Mar 15th 2018

    The service was great product is very well made the shipment was excellent as well. Hope you guys get more stuff for the Audi TT's. Thanks!!!!!!

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