[OE STANDARD]:All of the AUTOREBO oxygen sensors are built to achieve or exceed OE specifications, subject to strict quality control testing. Every component either matches or improves on the OE design to ensure fast and easy installation with superior possible performance and dependability. [Warranty & Support]: AUTOREBO products come with an 18-month post-purchase warranty, guaranteeing freedom from material and workmanship defects under normal use conditions from the original purchase date.