H3 Raptorq Performance ECM


Additional $500.00 ECM core charge applies at check out. Core must be received in good working condition within 30 days for full refund.
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VIN Required

Part Number: N/A

Product Description

Raptorq ECM Upgrade adds an approximate 40HP increase to 3.5L, 3.7L, & 5.3L H3 

Our unique proprietary & copyrighted RapTorq ECM was engineered with specific testing and development by our in-house Predator Motorsports engineering team.

During the development phases of our RapTorq ECM, our engineering team included a full evaluation of all available ECM programs by our competitors. While it remains standard practice to only modify the factory GM fuel-delivery curve. Our RapTorq ECM features a completely re-engineered “fuel-delivery curve & start-of-injection timing curve”. This design is engineered to optimize the H3’s combustion chamber providing peak efficiency and rapid power gains across the engines entire power band.

Our RapTorq ECM programming provides rapid throttle response from light-throttle to full heavy-throttle performance power. In conjunction with power gains, Fuel Economy is also improved throughout all operational conditions.

The primary goal was to create superior drivability with a maximum power curve within the OEM GM exhaust-gas temperature limits.

**Available for all year and model Hummer H3’s.


Each ECM is specifically programmed for your vehicle. To make sure the performance gains are programmed in a safe & reliable range. Each computer is programmed specifically for your individual Hummer. To do this, we need your VIN (vehicle identification number) number located within the door jamb of the vehicle. This is to ensure that our ECM is programmed properly to your specific vehicle requirements.

**Please include your VIN number in the “Notes” section upon check out.

When placing your order please include your vin number in the comments section of the order form. Also, a $500.00 ECM core charge applies. Core charges will be refunded within 30 days once the core has been received.

**We highly recommend installing & testing your Raptorq ECM before returning the core.

Please contact Predator for more information on our line of RapTorq Performance Upgrades.

Additional Information

Weight 14 lbs
Engine Size

3.5L, 3.7L, 5.3L