Ford Fiesta ST Forum banner

stock boost

  1. Fiesta ST Performance
    My 2014 ST has a cobra 3” cat back no res system Airtec stage 2 induction Turbo smart recirc valve Vudu symposer delete im pretty sure my st isn’t boosting right as I’m getting 7psi on over boost in 4th and 5th and from 1st to 3rd I get 5 psi at a push I’m seeing people getting between...
Top