Hot Racing RVO311X06 Adjustable Front & Rear Sway Bar Kit Traxxas E-Revo Revo Made by Hot Racing; Hot Racing is a United States based company; parts are sourced from Chinese producers All Hot Racing upgrade parts are direct replacements for stock components; additional parts are not required Hot Racing part number RVO311X06; UPC 083745355567 This item works with: Traxxas E-Revo 5603 5605 5608, Revo 3.3 5309