This is a must have upgrade for any Traxxas Revo owner. These suspension arms add an extra 10mm to 19mm of wheelbase which not only enhances the stance of the truck but also improves the handling. After I installed these on my truck the handling changed completely - for GOOD. It's a new truck altogether. Now the truck handles the corners really well and also remains planted on the ground due to the increased wheelbase. This suspension arm set should be on top of your list while upgrading or buying a new Revo. The best upgrade by Traxxas yet!!!