Hummer H2 6.2i V8 398 hp — Stage 1 file (+12 hp)
hp
Stage 1 file for Hummer H2 6.2i V8 398 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Hummer H2 6.2i V8 398 hp ECU
Hummer H2 (2003) 6.2i V8 398 hp — mass-market petrol engine of the passenger segment of the General Motors group (США, 1911). Stage 1 chip tuning raises power from 398 to 410 hp (+12 hp, +3%) and torque from 562 to 580 Nm (+18 Nm). This engine ships with different ECU variants: Delco E38, Delco E67. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. In the CHIPOK database: 2 configurations · 2 ECU variants. The 2003 generation — old-era petrol ECUs (ME7/ME9/MED9/Simos) with easily readable memory.
Hummer was originally derived from the military HMMWV. The Hummer EV is GMC's flagship electric pickup. Hummer is an American off-road brand; legacy models ran until 2010, and the GMC Hummer EV revived it in 2021. Chevrolet 2.0 / 1.4 Turbo are mainstream turbo engines for saloons and compacts. GM ECUs (E78/E80/E92) are Bosch-based but use their own checksum. Camaro SS / ZL1 / Corvette offer significant potential with hardware.
LS-swap is an industry of its own (Chevy LS engines into any car). HP Tuners is the primary tool for Chevrolet/GM in the US. The US Chevrolet community is the largest for Camaro, Corvette and LS-swaps. Top Chevrolet Corvette / Camaro ZL1 engines sit at the power ceiling of the American performance segment. HP Tuners is the leading tool for top Chevrolet models.
Frequently asked questions
How much horsepower does Stage 1 add for the Hummer H2 6.2i V8 398 hp?
The Stage 1 gain for the Hummer H2 6.2i V8 398 hp is 12 hp (+3%) over the stock 398 hp, for a total of 410 hp. Torque rises from 562 to 580 Nm (+18 Nm).
What is Stage 1 chip tuning for the Hummer H2?
Stage 1 chip tuning of the Hummer H2 is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +12 hp with no hardware changes.
What is the Stage 1 potential of the Hummer H2 6.2i V8 398 hp?
Stage 1 for the Hummer H2 6.2i V8 398 hp unlocks the potential built in by the factory but artificially capped to meet mass-market targets. A base of 750-800 hp is achievable once hardware is added.
How much does Stage 2 add on the Hummer H2?
Stage 2 on the Hummer H2 6.2i V8 398 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Which ECUs are found on the Hummer H2 6.2i V8 398 hp?
The Hummer H2 6.2i V8 398 hp was fitted with different ECUs depending on the year and trim: Delco E38, Delco E67. The write method (OBD, Bench, Boot) is determined when the unit is read.
What happens to the Hummer H2 warranty after chip tuning?
The factory warranty of the Hummer H2 does not remain valid after Stage 1 — the manufacturer withdraws its obligations once the ECU software is changed. CHIPOK provides its own warranty on its work and support.
How long does remapping the Hummer H2 take?
On the Hummer H2 6.2i V8 398 hp: OBD flash 25-30 minutes, Bench (if required) about an hour. The file processing itself takes 5-30 minutes once the original bin is received.
Is the original file kept when chip tuning the Hummer H2?
Yes, the original ECU firmware of the Hummer H2 6.2i V8 398 hp is kept and can be flashed back at any time. Returning to stock via OBD takes 25-30 minutes.
What is the price of a Stage 1 remap for the Hummer H2?
Stage 1 for the Hummer H2 6.2i V8 398 hp is paid for with CHIPOK credits (1 cr = 1 €). The final amount is set in the calculator, taking the extra options (off functions) into account.