Oxygen Sensor Wire ShieldSensor Plug Thermal CapSensor Plug Thermal Cap; 25 mm I.D. x 2 in.; 28.2 O.D.;SPECIFICATIONS: WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: This product contains a chemical known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov FEATURES: Aluminized Insulation Reflects Heat Act As A Thermal Barrier For Sensitive Wire Connections Simple To Install With A Split Top And Can Be Nested To Fully Cover Connectors Three Sizes - 25-32-62mm ID Thermal Sensor and Wire connector covers are a great way to protect sensors plugs and wire connectors from heat, moisture and dirt. They are made from an aluminized insulation that will reflect heat and act as a thermal barrier for sensitive wire connections and sensors. Simple to install with a split top to cover connectors near engine manifolds, turbos, and their heat sources. Includes: Two (2) covers, 25mm I.D. x 2 in. with 28.2mm O.D.Design Engineering, Inc.(TM) is one of the foremost suppliers of thermal tuning product featuring products for racers, street performance enthusiasts, and hobbyists alike. In addition to supplying the performance aftermarket with thermal tuning products, Design Engineering serves the needs of the powersports, marine, industrial and commercial industry markets the world over. - IT IS BUYERS RESPONSIBILITY FOR ITEM FITMENT BUYERS VEHICLE PLEASE DO YOUR OWN RESEARCH FOR ITEM FITMENT OR PLEASE ASK US BEFORE BUYING THIS ITEM IF YOU ARE NOT SURE THAT THIS WILL FIT YOUR VEHICLE.