We are extremely excited to announce full tuning support of the 2018 Ford Fiesta ST. The Accessport, Stage Power Packages, and Accesstuner software are all now confirmed to be compatible with Ford’s most recent iteration of the Fiesta ST.
COBB Stage Power Packages take the guesswork out of upgrading your Ford Fiesta ST. Each package is designed to increase the power output of the Fiesta ST’s 1.8L Turbocharged engine. Off The Shelf Maps included on every Accessport are calibrated specifically to be used with each package.
For a complete listing of compatible parts, see the 2018 Ford Fiesta ST Vehicle Page.
OTS Map Power Gains
In the graph below you can see power output in stock form and at each Stage. Additional power is found at each step and power under. The AFR curve towards the bottom shows a more favorable mixture in all of the COBB OTS Maps when compared to stock. For complete information about COBB Off The Shel Maps and compatible parts, visit the Map Notes Page.
Blue – Stock HP TQ
Red – Stage1 +2% HP / +21% TQ
Green – Stage2 +9% HP / +24% TQ
Purple – Stage3 +15% HP / +35% TQ