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Snow Performance Chevy/GMC Duramax Diesel Stage 3 Boost Cooler Water Injection Kit w/o Tank

Marsoni M251S
Sale price$520.84
Pay 4 payments of $130.21 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Snow Performance Chevy/GMC Duramax Diesel Stage 3 Boost Cooler Water Injection Kit w/o TankSnow Performance has combined performance, quality, and ease of installation in this new water methanol injection kit designed for all Chevy GMC LBZ LLY LMM LML L5P Duramax Ford owners who demand colder EGTs while towing heavy loads. The Diesel Stage 3 Boost Cooler utilizes a 2D mapped controller that commands injection based on boost pressure and EGTs (exhaust gas temperatures) to maintain extremely cold air inlet temperatures, 100 300 EGT decreases,
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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.
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4.6 ★★★★★
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Shane605
Alexandria, US
★★★★★ 5
DIY
Good price and fit my 2018 subaru crosstrek. Saved money switching it out myself. Super easy to do it yourself
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Reviewed in the United States on February 15, 2026
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Amazon Customer
Cuba, US
★★★★★ 5
Perfect fit
Perfect fit on my 2019 Subaru Forester.
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Reviewed in the United States on May 26, 2026
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Verified Purchase
sue garland
Massapequa, US
★★★★★ 5
Easy install
Perfect fit
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Reviewed in the United States on March 24, 2026
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Verified Purchase
Chris
Chelsea, US
★★★★★ 5
EPAuto stuff works and fits
Love their auto filters, tools and tire air compressers. EPAuto stuff works great and always fit!
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Reviewed in the United States on March 27, 2026
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Verified Purchase
Amazon Customer
Draper, US
★★★★★ 5
Great price, easy install
OEM fit and very easy to install. No issues at all — everything worked exactly as expected.
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Reviewed in the United States on November 19, 2025

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