Tuning file Hummer H3 (2006 - 2010) 5.3 V8 300hp

MasterTuning Di Fabio Marinaccio is leading in the development of Hummer H3 5.3 V8 300hp tuning files. The development of each Hummer H3 5.3 V8 300hp tuning file is the result of perfection and dedication by MasterTuning Di Fabio Marinaccio programmers. The organization only uses the latest technologies and has many years experience in ECU remapping software. Many (chiptuning) organizations around the globe download their tuning files for Hummer H3 5.3 V8 300hp at MasterTuning Di Fabio Marinaccio for the best possible result. All Hummer H3 5.3 V8 300hp tuning files deliver the best possible performance and results within the safety margins.

• 100% custom made tuning file guarantee;
• Tested and developed via a 4x4 Dynometer;
• Best possible performance and results, within the safety margins;
• Reduced fuel consumption.