Oxygen Sensor Spacer Adapter with Internal Catalytic Element M18x1.5 Thread for Modified Exhaust Systems

Stop Dashboard Warnings After Exhaust Upgrades

Aftermarket exhaust modifications often trigger unwanted dashboard alerts when oxygen sensors detect changes in emissions flow. This threaded adapter houses an internal catalytic element that conditions exhaust gases before they reach your downstream sensor. The magnetic induction spacing positions the sensor away from direct flow, allowing your vehicle's computer to read conditions similar to stock configuration. Built from heat-resistant stainless steel with M18x1.5 threading on both ends, it installs between your exhaust and sensor in minutes without cutting or welding.

Why You Need This

• Internal Catalyst Element: Unlike hollow spacers, the built-in catalytic core actively treats exhaust flow for authentic sensor feedback.
• Universal M18x1.5 Fit: Dual-ended threading works with most vehicles using this common oxygen sensor thread pattern.
• Heat-Proof Stainless Build: Industrial-grade stainless steel withstands extreme exhaust temperatures without warping or failing.
• Magnetic Sensor Positioning: Precise spacing combined with induction technology ensures accurate readings for your engine computer.
• Four-Step Installation: Simple bolt-on design requires only basic hand tools and takes less than 30 minutes per sensor.
• Low-Profile Design: Compact length preserves ground clearance while maintaining proper sensor distance from exhaust stream.

Built for Real-World Driving

Whether you've installed high-flow catalytic converters or a complete cat-back system, this adapter provides a straightforward solution without compromising your vehicle's performance characteristics. The stainless steel construction handles daily temperature cycling, while the internal catalyst element delivers consistent results mile after mile. Comes as a pair so you can address both upstream and downstream sensors if needed. Enjoy your upgraded exhaust setup with confidence, backed by our free US shipping and 30-day return policy.