Volo FS3 Fuel Saver Chip/ECU Tuner for 2009 Hummer H3T 3.7L 5.3L

  • This high-speed microprocessor soft-flashes your H3T’s ECU to produce fuel efficiency gains of 15-18% with no loss of horsepower or torque.
  • Installs behind the OBD-II port in minutes. Installation video and vehicle specific wiring print-outs are available on our website.
  • The Volo Chip replaces timing and fuel delivery values stored in the ECU’s temporary memory with optimized values. This produces the same results as expensive ECU upgrades, for a fraction of the cost. The Volo Chip DOES NOT alter rev and speed limiters.
  • No fine-tuning or vehicle knowledge required. Just install, hit the reset button for automatic calibration, and forget it. Comes pre-programmed with maps for Hummer 3.7L and 5.3L engines.
  • Makes no permanent changes to your H3T’s computer. Will not void your Hummer factory warranty and is emissions safe. Best of all, the Volo Chip is 100% guaranteed or your money back! Free firmware updates for life included with purchase.

Volo FS3 Fuel Saver Chip ECU Tuner for 2009 Hummer H3T 3.7L 5.3L

The FS3
The FS3 is one of our most powerful Dynamic Soft-Flashers. Operating at 20MHz with plenty of On-Board Memory, the FS3’s 8-Bit CMOS microprocessor offers extended compatibility along with faster patching for safer, higher, and more consistent gains.

Average gains for the H3T are 15-18% over stock MPG without losing power or torque.

Installation takes about 15 minutes and requires no special skills. Once installed, press the RESET button to calibrate and you’re done!
The FS3 does NOT include an OBD-II connector. It connects directly to the OBD-II port’s data lines. OBD-II scantools will not interfere with operation.

Alpha Crew Cab Pickup 4-Door
5.3L 5328CC 325ci V8 OHV

Base Crew Cab Pickup 4-Door
3.7L 3654CC 223ci l5 DOHC

Lifetime Warranty

Satisfaction Guaranteed or Your Money Back


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