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If you're ready to unlock the potential of your 6.7L Cummins, but want to keep the factory VGT turbo for its many benefits, then its time to bolt on some serious performance with the Hardway Performance Compound Turbo Kit.
Yes, you heard it right. From the mastermind we've all come to know for building some of the fastest Cummins in the world through his unmatched tuning ability, Ryan Milliken of Hardway Performance has built a true bolt-on compound turbo kit for the 6.7L Cummins. This system utilizes your factory VGT (Variable Geometry Turbo), meaning you keep the outstanding low end response VGT's are known for, as well as your factory exhaust brake, but gain the immense airflow capabilities of a custom built Fleece Performance 75mm S400 turbocharger. That's right, no out of the box turbo with this kit. Hardway Performance worked in conjunction with the gurus as Fleece Performance to determine the perfect turbo that would work in perfect harmony with the factory turbo, to avoid some of the drive pressure and surging issues that other kits can experience. After countless hours of testing numerous turbo configurations, a BorgWarner based S475/96 featuring a 1.32 A/R ratio in a T-6 frame was established as being the turbo of choice.
But what about the installation? Many compound kits for these trucks are a complete nightmare to install. You have to modify numerous components in the engine bay, and in many cases, you must relocate the factory passenger side battery. Not with this kit! You can even leave the factory turbo in place and install the rest of the kit around it! How about a compound turbo kit that can be installed in an afternoon in your garage? Yep, that's the kind of engineering and forethought that went into this compound kit.
Necessary Upgrades: With most other systems on the market, you are required to run an aftermarket exhaust manifold, which in turn eliminates your ability to maintain the factory emissions devices. Further, this means you must also have custom tuning calibrations to compensate for this. However, the Hardway Performance kit allows you to not only keep ALL emissions components completely intact, but also have the ability to install this on a 100% completely bone stock truck, including tuning, if you so chose. So, for those that are just running an Edge Juice with Attitude, as an example, you can install this kit without any worry of interference of other engine components or having issues with check engine lights. You can even keep the stock air box in place! But on the flip side, if you are in fact running custom tuning, larger injectors, pump upgrades, that's truly where this system will shine because it will deliver the airflow that you are currently lacking in order to support your other modifications.
- ManufacturerHardway Performance | EFIBYRYAN
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