Available engines(3)
Hummer H2 tuning: everything you need to know
The Hummer H2 is tuned via an ECU map optimisation tailored to each engine. Among the 3 available engines, gains vary by powertrain: expect on average 15 to 30% more power and torque from Stage 1.
Select your Hummer H2 engine above to view detailed gains per stage (Stage 1, Stage 2, E85), stock and tuned performance, and indicative tuner pricing.
Hummer H2 tuning: frequently asked questions
What gains can I expect from Hummer H2 tuning?
On the Hummer H2, a Stage 1 remap typically adds 15 to 30% more power and torque depending on the engine, with no hardware changes.
Which H2 engine tunes best?
The turbocharged engines (both petrol and diesel) of the Hummer H2 deliver the best gains. Select your engine above to see precise data.
Does tuning the Hummer H2 void the warranty?
A remap is reversible, but it may affect the manufacturer warranty. A certified tuner will advise you on best practices for your H2.
Where can I get my Hummer H2 tuned?
Use the ChiptuneMAP directory to find a certified tuner near you, and compare reviews, pricing and specialities for your Hummer H2.