O2 Sensor Spacer Adapter for Check Engine Light with Catalytic Converter Solution

Features: This O2 sensor adapter includes a miniature catalytic converter designed to help prevent check engine light activation after exhaust modifications. It is intended for use when the catalytic converter has been removed or replaced with a high-flow unit. Unlike simple spacers or extensions, this unit contains an actual miniature catalytic converter to signal the vehicle’s ECU that the emissions system remains functional. When the catalytic converter is removed, the downstream oxygen sensor detects changes in exhaust gas composition and temperature, potentially triggering diagnostic trouble codes such as P0420 (Catalyst System Efficiency Below Threshold – Bank 1) or P0430 (Catalyst System Efficiency Below Threshold – Bank 2). For off-road use only. This is an oxygen sensor adapter only; other items shown in images are not included. Specifications: Material: Stainless Steel Height: Approx. 4.65 cm (1.83 in) Thread Size: M18 x 1.5 Color: As shown in product images Quantity: 1 piece Note: No retail packaging is included. Slight measurement variations (up to 1 cm) may occur due to manual measurement. Monitor settings may affect color representation in images. Package Contents: 1 x Oxygen Sensor Adapter