Atomik RC Traxxas Revo 3.3 Nitro Aluminum Alloy Rear Body Mount Hop Up Upgrade, Blue Replaces Traxxas Part 5314 Precision CNC Machined for Factory Spec Fitment. Hardened Billet 6061 Aluminum for Lightweight and Durable Performance. Easy Upgrade from the Original Part. Replaces Traxxas Part 5314. Atomik RC Offers a Full Line of Hop Ups for your Traxxas Revo 3.3 Available in Red, Blue, Grey/Gunmetal.