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(Sale) HTT Promax 64 Turbo Charger - 64mm - LB7
(Sale) HTT Promax 64 Turbo Charger - 64mm - LB7 (Sale) HTT Promax 64 Turbo Charger - 64mm - LB7

(Sale) HTT Promax 64 Turbo Charger - 64mm - LB7

$1,574.10 & Free Shipping +$400.00 core charge (refundable)
Availability: In Stock

Available Options

* Installation Kit:

* Emissions:

Part#: HTT64-F / HTT64-CA

(Sale) HTT Promax 64 Turbo Charger - 64mm - LB7

Fits 2001-2004 Chevy/GMC 2500/3500 HD Duramax Diesel LB7


Normally $1749.00

The LB7 Promax is basically your stock turbocharger on steroids. Built specifically for the 2001-2004 LB7 Duramax, this turbo is perfect for the 400-625rwhp market looking for better EGT control with a much broader power and torque band to work with. This turbocharger is a direct replacement to the stock unit, with no other changes to the truck required. Improved air flow from our 63.5mm 6-blade billet compressor wheel along with wastegate modifications makes this the ultimate bolt-in upgrade. 

DmaxStore Note: This Turbo Charger was originally manufactured directly for Calibrated Power/Duramax Tuner and named the Stealth 64. 

Built transmsision, EFI Live tuning and a lift pump will help reach it's maximum potential. We've seen over 80hp and 160lb-ft gains over the stock turbocharger, with dyno charts in the 620hp range.


64mm Compressor Wheel
Increased MPG's and Performance
Reduced EGT's

Drop in Replacement
Up to 620 HP
1280 ft-lbs of torque
Peak Boost of 35 PSI 

*Picture may not be current version of this upgrade

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If you choose the Core + 10% option on this product, you will receive an additional $30 on top of the $300 core refund for a $330.00 Dmaxstore gift card (once core refund is processed).  Please fill out and return the core choice form that is included with your shipped product along with your core.