SKU: 96271710279

H&S Motorsports Dual High Pressure Fuel Kit with CP3 11-16 6.6L Duramax

Sale price$1358.55 Regular price$1509.50
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

H&S Motorsports Dual High Pressure Fuel Kit with CP3 11-16 6.6L DuramaxThe potential of the LML Duramax to deliver unreal power has been proven. Simple programming and exhaust modifications have pushed these engines well past the 500 RWHP mark with ease. And as diesel enthusiasts typically do, the limits are being pushed to see what kind of power can be pulled from these trucks. One of the limitations found is the factory CP4 injection pump. While this has shown (so far) to be a reliable pump, it's also shown to be

The potential of the LML Duramax to deliver unreal power has been proven. Simple programming and exhaust modifications have pushed these engines well past the 500 RWHP mark with ease. And as diesel enthusiasts typically do, the limits are being pushed to see what kind of power can be pulled from these trucks. One of the limitations found is the factory CP4 injection pump. While this has shown (so far) to be a reliable pump, it's also shown to be essentially a bottleneck. When trucks are pushed above the 500 horsepower mark, the additional power gains begin to diminish due largely in part to the lack of rail pressure. Because of this, HS Motorsports has developed a dual pump system to cure this issue, and deliver enough fueling to support 900+ horsepower!

Just as a quick reference for you diesel nuts out there, the engineers at HS Performance were able to run 3800us (not recommended) of main injection duration on stock injectors without a drop in rail pressure. So what does that mean? Well, think about it this way; their off-the-shelf HOT tune commands around 1400us and is on the verge of draining the rail on a stock CP4-equipped truck. At 3800us, that is a 270% increase in fuel demand from their HOT tune and limit of the stock CP4. The HS Motorsports Dual High Pressure Fuel Kit was able to maintain the commanded 29,000 PSI rail pressure without skipping a beat.

One of the HUGE benefits to this system is that it includes a BRAND NEW CP3 from Bosch. That's right, BRAND NEW, not a remanufactured unit like many other companies utilize. The key to ensuring the longevity of any high pressure fuel pump is by providing the high pressure fuel system with clean, waterless diesel fuel. Any fuel contamination that reaches the high pressure fuel system can be detrimental to reliability and performance. Because of this, we highly recommend using a FASS, AirDog or similar lift pump for proper filtration and water-separation.

Why does HS use a CP3 in instead of a CP4?

There are a few reasons they chose the CP3 over the CP4:
  • The CP3 pump has been proven to be reliable. This pump technology has been used on the Cummins and Duramax platform for years.
  • While the CP4 has the capability of delivering higher pressures, it lacks the volume of the CP3. With both pumps installed, you get the best of both worlds - high pressure and high volume.
  • Price. With the CP4 being a newer pump, it is obviously more expensive. By saving on the pumps included with the kit, we can pass that savings directly on to the customer.
  • If your fueling demands exceed what the stock CP3 and CP4 are capable of providing, one of HS' 6.7L Cummins 10MM Stroker pumps can easily be used as a replacement while still being able to re-use all fittings and lines included with the kit.
IMPORTANT NOTES:
  • This product will NOT work with trucks that have dual alternators. The HS Motorsports CP3 pump is mounted where a dual alternator would be located.
  • This product may not work with the EGR cooler installed. It may need to be removed.
  • This product MUST be used in conjunction with custom tuning calibration. Failure to install the correct calibrations can result in engine damage.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 96271710279

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patti
Fort Morgan, US
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Reviewed in the United States on May 10, 2026
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New York, US
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Keeps me cooler than before!!
Color: Light Gray, Size: Full / Queen (90"x90")
I have been going back and forth about buying the Rest comforter but it is so expensive and then I stumbled across this. I am very pleased, it is light and one side usually stays cool to the touch. It does warm up with body heat but usually I let it sit in front of the fan for few minutes and it’s cold again. It was made a huge difference and it good quality for what you pay.
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Chelsea, US
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A true cooling blanket
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Hot sleeper paradise! It’s so silky, lightweight and extremely comfortable. I definitely recommend this for anyone who is usually is a hot sleeper or going through menopause (the night sweats are the worse)
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Brittney C
Whiting, US
★★★★★ 4
Silky comfort
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I love this comforter. I’ve been using a blanket I ordered on another site for the last year that I loved but needed a new one because my son got bubble gum on it. I ordered this one after searching for a a couple of days. I was initially disappointed because it didn’t feel like it had the same cooling factor as my prior blanket. However, after sleeping with this blanket for the past 2 nights, I can say I’m in love. It’s still “cool”, just in a different way. I’m so excited to go lay down. Lol. It feels like a silk sandwich with light, soft comforter material on the inside. Silky and cool. Definitely recommend.
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Sandra Fiore
Bozeman, US
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Excellent purchase
I love everything about it. The color, the soft cool texture and it drapes nicely over the sides of my mattress. It’s very beautiful. Perfect for the warmer season. I washed and dried it when I received it and it came out well. I love sleeping with it and so do my cats. A very excellent buy for little money
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