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PERFORMANCE GL4-H computer upgrade 1996-2003 Hummer H-1

PERFORMANCE WITH ECONOMY

PERFORMANCE GL4-H computer upgrade 1996-2003 Hummer H-1 Product GalleryCustomer ReviewsTechnical SpecificationsProduct Manuals
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Designed specifically for the H-1 6.5, Max-E-Tork GL4-H programming is engineered to maximize diesel combustion efficiency, with fuel delivery and start of injection timing curves uniquely tailored to the damanding H-1 application.


Drivability is substantially improved with crisp throttle responce, spirited light throttle performance and strong heavy-to-full throttle power---no disappointments!
Heath suggests these additional upgrades:Super-Flow exh system, Heath Water-Mist Injection system, Heath PMD Isolator system, Heavy Duty fuel lift pump.

We offer this product with a 90-day satisfaction guarantee as well as a 7-year free replacement part warranty.


This Max E Tork GL4H-1 PCM is supplied on an exchange basis. A refundable $300 core deposit is assessed at the time of purchace. This pcm core deposit is refunded upon return of your original, serviceable pcm core unit.


We are dedicated to support of the 6.5 and are always happy to help---please feel free to contact us with any questions you may have.


Not legal for sale or use in California on any pollution controlled motor vehicles


Brand: HDP Performance
HDP Part Number: #HDP1545
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