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Snow Performance Stage 3 EFI 2D Map Progressive Water Injection Kit w/o Tank
Snow Performance Stage 3 EFI 2D Map Progressive Water Injection Kit w/o Tank
Snow Performance Stage 3 EFI 2D Map Progressive Water Injection Kit w/o Tank
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Snow Performance Stage 3 EFI 2D Map Progressive Water Injection Kit w/o Tank

Marsoni M251S
Sale price$364.58
Pay 4 payments of $91.14 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Snow Performance Stage 3 EFI 2D Map Progressive Water Injection Kit w/o TankThe Snow Performance Stage 3 Boost Cooler brings true 2D mapped water methanol injection delivery to your EFI (electronic fuel injected) and forced induction (turbocharged supercharged) vehicle. The Stage 3 creates a 2D injection map based off boost and fuel injector pulse width to deliver a extremely accurate amount of water methanol when the engine needs it most. Bringing fuel injector pulse width into the mix allows the injection curve to be
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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]
  • Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 597 reviews
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Product Reviews
I
Verified Purchase
Ian H
Phoenix, US
★★★★★ 3
Check engine light
Style: Gloss Black Single Slat, Size: G20（2019-2022）, Style: Gloss Black Single Slat, Size: G20（2019-2022）
Looks good but will throw a check engine light on your car. The fitment isn’t perfect causing the adaptive vents to show that they are failing even though they are not
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
W
Verified Purchase
Works great and a better price than others. Works well in the 16” oven.
Draper, US
★★★★★ 5
Quick fix
Style: Gloss Black Single Slat, Size: E46（2002-2005）4-Door
Easily Installed with no modification in under a minute. The finish was a little glossier, then OE.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
C
Verified Purchase
Carlos M. Ortiz
Boise, US
★★★★★ 5
Exact Fit for 2001 BMW 325CI Convertible
Style: Gloss Black Single Slat, Size: E46（1999-2002）2-Door, Style: Gloss Black Single Slat, Size: E46（1999-2002）2-Door
Perfect fit for a 2001 BMW 325CI convertible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
F
Verified Purchase
Fabian
Carnegie, US
★★★★★ 5
Sedan
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Chrome, Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Chrome
Perfect fit for a 2002 325i sedan, locks in place and does not fall out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
C
Verified Purchase
Charles Livingston
Carnegie, US
★★★★★ 5
Perfect fit
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Glossy Black
Perfect fit for the 2004 E46 BMW.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025

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