The COBB Accessport V3 for 981 Cayman / Boxster / GT4 and 991.1 Carrera is a powerful ECU-flash tool that unlocks performance potential by replacing conservative factory settings with optimized calibrations. Its bright, high-resolution color screen lets you monitor up to six real-time engine parameters — perfect when testing bolt-on upgrades or dialing in performance. With space for up to 100 maps, it adapts as your build evolves: one ECU flash tool can handle stock, mildly modified, or heavily tuned applications, making it a versatile “do-it-all” tuning solution.
Compatible with Porsche 981 Cayman / Boxster / GT4 (2013–2016) and Porsche 991.1 Carrera (various years) — check specific ECU version before installing.
Works with both manual and PDK transmissions (on supported models), and supports map switching without permanent ECU alteration.
Ideal for cars with stock hardware or those fitted with bolt-on upgrades (intake, exhaust, downpipe, etc.), where tuning maximizes gains and maintains drivability.
Accessport V3 handheld tuner unit (vehicle-specific model)
Vehicle-specific OBD-II cable for plug-in flash process
Interchangeable faceplates for customizable look & fit
Instructions and mounting hardware/adhesives for in-car mounting
ECU flash storage: Holds up to 100 calibrations (stock, off-the-shelf, or custom)
Real-time monitoring: Supports up to 6 gauges simultaneously (boost, temps, AFR, etc.) for live feedback
Data logging: Full ECU data-logging capability for diagnostics or tuning analysis
Performance tools: On-board timers for 0–60 mph, ¼-mile, 60-ft, and trap-speed metrics
Reversible: Easy uninstall returns ECU to factory state — ideal for warranty retention or resale
Instant Performance Unlock — Flash tuned maps to unlock horsepower, torque, and throttle response hidden by conservative factory settings.
Tuning Flexibility — Supports off-the-shelf maps or custom tunes; you can update maps as you add hardware upgrades for optimal performance.
Live Monitoring & Diagnostics — Real-time gauges, data-logging, and on-the-go diagnostics let you verify engine health, monitor boost/temps, and detect issues early.
Performance Tracking & Logging — Built-in stopwatch and logging tools help you track 0-60, ET, and performance before/after mods for measurable gains.
Safe & Reversible — ECU can be reverted to stock settings any time — perfect for passes on dyno, resale value, or dealer service.
Comprehensive Mod Support — Whether you’re stock or building a full performance setup, the Accessport grows with your car as your tuning base.
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