2Pcs O2 CEL Fix Oxygen Sensor Extension Spacer Adapter 55mm BUNG Eliminator HHO

What is 2Pcs O2 CEL Fix Oxygen Sensor Extension Spacer Adapter 55mm BUNG Eliminator HHO?

This 2-pack oxygen sensor extension spacer helps eliminate check engine lights triggered by exhaust modifications, especially when catalytic converters are removed. Designed for universal fitment, the 55mm spacers reposition downstream O2 sensors away from direct exhaust flow, reducing false readings. Made from durable zinc-plated steel, they withstand high heat and vibration under vehicle chassis. Each adapter features an M18 x 1.5 thread pitch and a female end that accepts the sensor, allowing for simple bolt-on installation. These spacers are commonly used in HHO kit installations or cat-delete exhaust systems where sensor readings must be moderated for stable engine operation.

Key features

• Material — Zinc-plated steel for corrosion resistance and durability.
• Thread Size — M18 x 1.5 for universal compatibility with most O2 sensors.
• Length — 55mm extension provides optimal sensor repositioning.
• Design — Straight spacer with female end for direct O2 sensor threading.
• Installation — Bolt-on setup with no welding or modifications needed.
• Quantity — Includes 2 pieces for dual exhaust or backup use.
• Use Case — Intended for off-road or track-only vehicles, not street-legal applications.

Who is 2Pcs O2 CEL Fix Oxygen Sensor Extension Spacer Adapter 55mm BUNG Eliminator HHO for?

This product suits DIY automotive enthusiasts modifying exhaust systems, particularly those removing catalytic converters or installing HHO kits. It's ideal for track-day builders or off-road vehicle tuners who need to manage O2 sensor signals without ECU reflashing. Not recommended for daily drivers in regulated emissions regions.

How does 2Pcs O2 CEL Fix Oxygen Sensor Extension Spacer Adapter 55mm BUNG Eliminator HHO compare?

Compared to standard O2 sensor simulators or emulator modules, these mechanical spacers offer a low-cost, no-electronics solution. They are simpler than programmable ECUs or piggyback controllers but less precise. Unlike welded bung adapters, these bolt-on spacers allow reversibility. They match the durability of similar steel spacers but at a lower price point than stainless steel variants.