Features: This O2 sensor adapter is designed for use with vehicles equipped with oxygen sensors. It is constructed with a stainless steel body and features a built-in miniature catalytic element. It is intended to help maintain proper sensor signal output in certain exhaust system configurations. The adapter is compatible with standard M18x1.5 threaded oxygen sensors. It is engineered to assist in maintaining consistent post-catalyst sensor readings under specific conditions. For off-road use only. Oxygen O2 Sensor Adapter only; other accessories shown in images are not included. Specifications: Material: Stainless Steel Height: Approx. 4.65 cm / 1.83 in Thread Size: M18x1.5 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. Color appearance may vary slightly depending on monitor settings. Package Contents: 1 x Oxygen O2 Sensor Adapter