EVO-X Tuning : Mitsubishi EVO Blow Off Valves | Performance Upgrades for Automotive Applications. Take a look at the Blow Off Valves we sell from top brands including Agency Power, Blitz, Cobb, Go Fast Bits, HKS, Perrin, Turbo Smart and Works. We sell Blow Off Valves for vehicles including Mitsubishi. We offer Blow Off Valves for applications including Mitsubishi Evolution and more. Select your vehicle from the search filter below to view Blow Off Valves by vehicle make, model and year.