Please make sure the size before ordering. 
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Product Description
The RTAMO Titanium O2 Oxygen Sensor Adapter is a high-quality fastener designed for motorcycle exhaust pipes. Made from Grade 5 Titanium Alloy, this adapter is durable and built to last. The M18 to M12 metric system of measurement ensures a precise fit for your motorcycle, providing a secure connection for your oxygen sensor. With a single unit included in the pack, this adapter is a reliable and essential component for any motorcycle enthusiast looking to upgrade their exhaust system. Made in China, this product is a testament to quality craftsmanship and attention to detail.
Specification:

Material: Titanium Alloy, Grade 5
Color: silver /gold / blue / purple / black/ green

Application: 
Fit for Motorcycle Oxygen Sensor Modified

Package includes:
Price is for 1 piece

Warm Tips:
1. Due to the difference between different monitors, the pictures may not reflect the actual color of the item.
2. Compare the detail sizes with yours, please allow 0.1-0.3cm error, due to manual measurement.
3. Please leave a message before you give the bad feedback, if the products have some problems.

Thanks for your understanding and have a nice day!