Snow Performance Stage 2 Boost Cooler Water Methanol Injection System 04.5-21 GM 6.6L Duramax
SKU: 38960840694

Snow Performance Stage 2 Boost Cooler Water Methanol Injection System 04.5-21 GM 6.6L Duramax

Sale price$375.00 Regular price$416.67
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Snow Performance Stage 2 Boost Cooler Water Methanol Injection System 04.5-21 GM 6.6L DuramaxLet's face it, we all want more power out of our rig, and we are no stranger to adding the biggest baddest parts to make this happen. But what if you could lower your EGTs by the hundreds, increase your horsepower, and add a huge amount of torque with a very simple easy to use system? Water Methanol Injection systems offer huge benefits at low costs and work by injecting a precise amount of water and methanol into your intake. These systems are just

Let's face it, we all want more power out of our rig, and we are no stranger to adding the biggest baddest parts to make this happen. But what if you could lower your EGTs by the hundreds, increase your horsepower, and add a huge amount of torque with a very simple easy to use system? Water-Methanol Injection systems offer huge benefits at low costs and work by injecting a precise amount of water and methanol into your intake. These systems are just plain awesome, and this Stage 2 system from Snow Performance is top-notch!

Lower EGT's 100-300 degrees and increase horsepower by 65+ with a cleaner, cooler running Duramax! The Snow Performance Diesel Stage 2 Boost Cooler is available for all Duramax owners looking to have the benefit of water-methanol injection throughout the Duramax's boost range. The Stage 2 utilizes a progressive VC-50 controller (52mm gauge) that commands two water-methanol nozzles that proportionally inject more or less according to boost pressure. Start and full points are adjustable for engagement and delivery curve to match what the engine requires. Proportionally injecting according to boost pressure gives an accurate delivery of water-methanol and allows cooling and performance improvements over a wide range for improved drivability. The VC-50 controller (52mm gauge) offers the functionality of a boost gauge and water-methanol controller all in one! Highlighting a 7 color (Blue, White, Red, Yellow, Orange, Purple, Green) OLED screen displaying boost, percentage of injection, secondary nozzle activation, prime button, and 4 fault codes directly on the screen you can tailor the controller to match your OEM gauges or mix and match up to two colors. 7 Gal Tank included for trip ready installation.

Shipping Notes
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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]
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SKU: 38960840694

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Hank
Chelsea, US
★★★★★ 5
Quality for the price
All necessary parts good quality
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Reviewed in the United States on March 16, 2026
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Amazon Customer
Alexandria, US
★★★★★ 5
quality
prefect fit, best pricing over local outlets wanting twice as much
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Reviewed in the United States on February 19, 2026
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Amazon Customer
West Palm Beach, US
★★★★★ 3
Ok
Not bad not great. Quality feels cheap.
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Reviewed in the United States on December 30, 2025
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Mike H
Los Angeles, US
★★★★★ 5
Lower unit water pump
Worked fine
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Reviewed in the United States on October 16, 2025
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Eddie S.
Waukegan, US
★★★★★ 5
Great value and working started
Great starter. I had ordered a cheaper option before this and it just hold up. When this one arrived I could tell I made the right decision right out of the box. It looked, felt and worked like the OEM one. No shims just a good working starter. Spend a few extra bucks and save time.
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Reviewed in the United States on May 24, 2026

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