Focus ST Custom Tune ECU Calibration by Tunewerks Fuel:100 octane Focus ST / Fiesta ST

Focus ST / Fiesta ST Cobb AP features

PRO TIP: When increasing boost pressure and overall performance of your Focus ST

This service is nontransferable and other restrictions may apply

Follow our staged upgrade path with pre-loaded Off The Shelf (OTS) maps or use custom mapping for any modification level

Please check your local laws for emissions compliance information

Focus ST Custom Tune ECU Calibration by Tunewerks Fuel:100 octane Focus ST / Fiesta STFocus ST Custom Tune Maximize the performance of your Focus ST with a Tunewerks custom and FULLY optimized ECU tune for your Cobb Accessport. Nothing will surpass custom tuning when it comes to increasing the output of your turbocharged hot hatch! With high quality fuel you can expect average peak to peak gains of 20+ WHP and 80+ WTQ compared to the stock ECU calibration. Our test vehicle gained 24 horsepower and 93 ft. lbs. of torque AT THE WHEELS,