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Nitrous Express Direct Port Water Injection 4 Cyl Stage 2 w/Hardlines

Marsoni M251S
Sale price$507.16
Pay 4 payments of $126.79 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Express Direct Port Water Injection 4 Cyl Stage 2 w/HardlinesNX direct port water methanol systems inject the water methanol mixture directly into each intake runner providing excellent distribution to each cylinder. These systems include a high pressure electric pump, high pressure push lock hose, filtered nozzles, nickel plated fittings and a composite reservoir. Stage one systems include a wide open throttle activation switch while stage 2 and stage 3 systems include digital progressive controllers that
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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 ★★★★★
Based on 2387 reviews
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R
Verified Purchase
Robert Davis
Waukegan, US
★★★★★ 5
Great deal
Works perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 8, 2025
Y
Verified Purchase
Yuna Tampa Fl ✅
Alexandria, US
★★★★★ 5
Feliz 🙂
Súper buena resolví mi problema
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
S
Verified Purchase
Sam E
Louisville, US
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
J
Verified Purchase
john A.
Houston, US
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
W
Verified Purchase
Willy Bill
New York, US
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026

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