COBB Tuning 13-18 Ford Focus ST / 14-19 Fiesta ST AccessPORT V3 - AP3-FOR-001

The COBB Tuning Accessport V3 AP3-FOR-001 is the industry-leading ECU tuning solution engineered to unlock more performance from your Ford. Designed specifically for the turbocharged 2.0L EcoBoost engines in the Ford Focus ST (2013–2018) and Ford Fiesta ST (2014–2019), this Accessport opens the door to aggressive calibration maps, real-time engine monitoring, data logging, performance measuring, and advanced features like launch control, flat-foot shifting, and burnout mode.

Far more than a simple tuner, the Accessport serves as an ECU reprogramming interface, performance gauge package, and diagnostic tool all in one. With a bright, high-resolution color display and customizable multi-gauge screens, performance enthusiasts gain immediate insight into critical engine parameters while having the freedom to tailor tuning maps to your build’s exact specifications.

COBB Tuning AP3-FOR-001 – Features

• High-resolution, full-color display with customizable views and gauge layouts.
• Simple plug-and-play ECU flashing with intuitive on-screen instructions.
• Supports up to six live engine parameters displayed simultaneously.
• Pre-loaded Off-The-Shelf (OTS) tunes with multiple stages for different performance levels.
• Data logging up to 10 hours of driving sessions for diagnostic analysis.
• Performance tools: 0-60 mph, ¼-mile ET, trap speed metrics.
• Read/clear diagnostic trouble codes (DTCs) without a dealer visit.
• Map switching for instant switch between multiple calibration setups.
• Ford-specific features: Adjustable traction control, flat-foot shifting, burnout mode, and launch control.
• Interchangeable faceplates and customizable visual themes.
• Legal for use in all 50 states when used according to COBB guidelines.

Performance Gains

Ford Focus ST (2013–2018)

Accurate gains from COBB’s official Stage1 and Stage2 calibrations for the Focus ST show meaningful increases in horsepower and torque over stock tuning. Both peak and maximum gains are indicated to give a range of performance expectations based on operating conditions and fuel type.

• Stage1 87 Octane: Peak +2% HP / +9% TQ, Maximum +8% HP / +10% TQ
• Stage1 91 Octane: Peak +1% HP / +22% TQ, Maximum +4% HP / +27% TQ
• Stage1 93 Octane: Peak +1% HP / +24% TQ, Maximum +5% HP / +30% TQ
• Stage2 91 Octane: Peak +4% HP / +22% TQ, Maximum +10% HP / +29% TQ
• Stage2 93 Octane: Peak +5% HP / +24% TQ, Maximum +11% HP / +31% TQ

Peak gains represent the largest increase at specific rpm points, while maximum gains represent the broader average improvement across the power band. These gains result in stronger midrange pull, improved throttle responsiveness, and enhanced acceleration with supporting hardware.

Ford Fiesta ST (2014–2019)

COBB’s Fiesta ST calibrations provide solid performance increases when compared to stock tuning, with distinct peak and maximum gain figures across typical fuel octane ratings.

• Stage1 91 Octane / 95 RON: Peak +2% HP / +19% TQ, Max Gains +4% HP / +23% TQ
• Stage1 93 Octane / 98 RON: Peak +2% HP / +21% TQ, Max Gains +5% HP / +26% TQ
• Stage2 91 Octane / 95 RON: Peak +7% HP / +22% TQ, Max Gains +12% HP / +27% TQ
• Stage2 93 Octane / 98 RON: Peak +9% HP / +24% TQ, Max Gains +14% HP / +29% TQ

These gains translate into noticeably improved torque throughout the lower and mid rpms, with heightened peak power output, especially when paired with intake and intercooler upgrades.

COBB Tuning AP3-FOR-001 – Fitment

• 2013–2018 Ford Focus ST (2.0L EcoBoost)
• 2014–2019 Ford Fiesta ST (1.6L EcoBoost)

Frequently Asked Questions

What exactly does the COBB Accessport V3 AP3-FOR-001 do?

The Accessport V3 flashes your Ford’s ECU to replace conservative factory calibrations with performance-oriented maps, monitor live engine data, log performance sessions, and enable advanced driving features.

Do I need to keep the Accessport plugged in after tuning?

No — once a calibration map is flashed to your ECU, it stays in the ECU memory even after the Accessport is unplugged. The device can be re-connected anytime for map changes, diagnostics, or data logging.

Will using this tuner void my factory warranty?

Installation of performance tuning may affect OEM warranty coverage. Dealers can detect that your ECU was tuned. Always consult your dealer before tuning.

Can I use the Accessport with aftermarket parts?

Yes — the Accessport supports custom tune maps designed for vehicles with various bolt-on upgrades. Off-the-shelf maps cover COBB parts only, but professional custom tunes can be used for other brands.

What fuel should I run with COBB tunes?

Fuel type impacts power and safety. Higher-octane like 93 will allow more aggressive timing and boost targets. Always follow map requirements and recommendations in the tune documentation.

Can I switch back to stock tune?

Absolutely — the Accessport saves your stock ECU image that can be flashed back at any time, allowing you to return your ECU to the factory ECU image quickly.

Package Contents

• 1 × COBB Tuning Accessport V3 (AP3-FOR-001)
• OBD-II cable harness
• USB PC cable
• Universal interior mount and adhesive
• Owner’s quick start guide and safety instructions

Manufacturer’s Warranty

COBB Tuning offers a limited 12-month warranty covering defects in materials and workmanship from the original date of purchase when purchased from an authorized dealer. Warranty does not cover damage from misuse or improper installation.