The Evenflow 2x Boost is a vehicle upgrade featured in RAGE. After the player successfully completes the "Durar's Time Trial" challenge, it will be installed on the Dune Buster and Rat Rod buggies. The Evenflow 2x Boost upgrade provides the same boost as the regular Evenflow Boost but has twice the Boost duration. This is helpful for escaping enemy vehicles, ramming, and anything involving speed.