IE's 4.0TT ECU tune for the Porsche Cayenne Turbo and GTS V8 is a total transformation delivering supercar performance with 692-857HP and 795-893ft-lbs of torque depending on octane. With our cutting-edge modern motorsport tuning approach, your twin-turbocharged engine's potential is fully realized while maintaining total comfort and reliability. Release the hidden power and heighten your driving experience with a simple install that takes only minutes from your phone.

UPGRADE IN MINUTES
MOBILE TUNING
EASY POWER

REAL PERFORMANCE
+316HP & 326TQ
YOU CAN FEEL

INCLUDES
91, 93, 104, E85
MULTIPLE FUEL OPTIONS

LEADING FEATURES

Horsepower & torque gains maximized
Includes Apple & Android Mobile Flashing app
91, 93, 104, E40, & E85 fuel maps included
Compatible with all stock hardware
Get the most performance with upgraded intake and intercooler
Harder and more aggressive launch strategy
Brake boost enabled for rolling launch
Recalibrated factory boost gauge displays higher boost
Rescaled horsepower and torque gauge displays
Gauge display needle animations smoothed (less glitchy)
Auto start/stop disabled (button turns on instead of off)
Neutral/park rev limit raised
Enhanced exhaust overrun crackle in sport mode
Maximized map scaling for dependable throttle use
Boost control reconfigured for smooth and crisp power delivery
Optimized EGT for safe fuel ratios and maximized power output
Reduced turbocharger lag
Road speed limiters removed
Engineered for all climates and elevations
Direct port OBDII at-home flashing
Easy octane switching takes only minutes
Read and clear diagnostic/problem codes
Easy to use Data-logger

PORSCHE 4.0T ENGINE TUNE

IE's premium performance engine calibrations reprogram your Cayenne's Engine Control Unit (ECU) to instantly release hidden power from your twin-turbo V8 with 692-857HP and 795-893ft-lbs of torque! Enjoy a transformed SUV that feels like a proper Porsche with maximized power, a snappy throttle feel, improved boost delivery, reliable engine response, and a larger powerband. Engineered to operate on entirely stock hardware or with an upgraded intake and intercoolers for the most performance.

See performance tab for full performance results & dyno reports

INCLUDED OCTANES

Effortlessly switch between octanes at your convenience with IE POWERlink Mobile. IE Cayenne 4.0T tune offers optimized files for 91, 93, 104, E85, and E40 fuels, ensuring maximum power and torque from your fuel choice in just minutes.

E85 &104 RACE GAS

The E85 fuel map allows easy ethanol fill-ups without mixing ethanol/gas blends. Just fill up your tank with E85, flash the E85 tune option, and experience the massive increase in power over regular 91 or 93 pump gas. Our 104-octane race gas file has been developed with Sunoco GT260 Plus 104 for areas without or with limited ethanol availability to offer considerable power gains without using E85.

E40 ETHANOL BLEND

Release an absolute torque monster by combining 91/93 pump gas with E85 to 40% ethanol (E40). This blend creates a safe fuel mix that stays within the limit of fuel delivery for the factory injectors. This E40 calibration produces the total torque output from the twin-turbo V8, producing an exhilarating 893ft-lbs of torque with seat-slamming acceleration.

An ethanol content sensor kit is highly recommended when running E40 ethanol blends.

HARDWARE GUIDE

PART UPGRADE	REQUIREMENT
AIR INTAKE	Compatible not required
INTERCOOLERS	Compatible not required
CATBACK EXHAUST	Compatible not required
DOWNPIPES	Not Compatible With Stage 1

ADVANCED TUNING

The factory ECU calibration is full of regulations and compromises that limit horsepower/torque and dull the power delivery and throttle feedback. IE calibrators re-tuned the complicated boost map programming with advanced strategies, resulting in unmatched power delivery. The throttle mapping also receives a significant rewrite to deliver a linear and predictable throttle feel. These refinements result from months and months of fine details that dramatically improve your control over the car with a much more connected and precise feel.

EGT OPTIMIZATION

Exhaust Gas Temperature (EGT) is the measurement of fuel mixtures exiting the exhaust and is used to determine the health of the fuel/air mixture entering the engine. IE engineers have spent countless hours adjusting boost air/fuel ratio, ignition timing angle, camshaft phasing, intake air temps, and much more to develop the proper EGT adjustments for ultimate engine safety without sacrificing power.

FITMENT GUIDE

MAKE	MODEL	YEAR	GENERATION
PORSCHE	CAYENNE TURBO	2019-2024	9Y
PORSCHE	CAYENNE GTS	2021-2024	9Y

Important Note: Porsche is implementing new security patches in the EA825 ECUs. Only some security patches have been fully cracked by the aftermarket, and some vehicles may require additional work for IE's calibrators to flash. If your car is equipped with a rare ECU, you may experience a brief wait period while our calibrators bypass the security patch.

Not compatible with euro6 particulate emissions ROW (Rest Of World) GPF equipped vehicles.

9Y0 Cayenne 4.0L

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IE Performance ECU Tuning For Porsche Cayenne Turbo / GTS 4.0T V8