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GMC Savana 4.8 v8 275hp 2003 - > Performance Tuning

Horse Power

Factory HP
275
Tuned HP
295
Increased HP
+20

Torque (NM)

Factory (NM)
393
Tuned (NM)
415
Increased (NM)
+22
Dyno chart
* This chart should be considered a visual representation only, actual values will vary

Unlock the full potential of your GMC Savana with Advanced Tuning & Performance, New Zealand’s trusted GMC tuning specialists.

At Advanced Tuning & Performance, we provide custom ECU tuning for GMC Savana 2003 - > 4.8 v8 275hp that delivers more power, improved torque, and sharper throttle response, all while maintaining reliability and safety. Our team is dedicated to staying at the forefront of vehicle tuning in New Zealand, constantly developing and refining our calibrations to suit local driving conditions and fuel quality.

Every GMC Savana tune is developed and tested on our in-house 4WD dyno, ensuring precise results tailored to your specific vehicle. We use a custom tuning approach, so your Savana performs at its best, perfectly balanced for performance, efficiency, and the New Zealand climate.

Enhance your setup with performance add-ons such as exhaust upgrades, EGR and DPF solutions, pops and bangs, and more. Whether you’re chasing more towing power, smoother drivability, or a sportier sound, we’ve got the right solution.

How it works: Book your GMC Savana for a custom tune, drop it off in the morning, and pick it up after work, ready to experience your GMC without limitations.

Increased power and torque made possible via an ECU Remap
Available worldwide - enquire about our mobile units.
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