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Nitrous Outlet 4 Cylinder Direct Port System - .122 Nitrous Solenoids/.177 Fuel Solenoids/Dual Passage Injection Rail/Annular Discharge Nozzles (E85)(45-55 psi)(50-250HP)(12lb Bottle)

Marsoni M251S
Sale price$1338.99
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Nitrous Outlet 4 Cylinder Direct Port System - .122 Nitrous Solenoids/.177 Fuel Solenoids/Dual Passage Injection Rail/Annular Discharge Nozzles (E85)(45-55 psi)(50-250HP)(12lb Bottle)High Fuel Pressure (45 55 PSI) Straight Blow Through Nozzle Flow Up To 400HP Four Cylinder Wet System Single Untapped Injection Rail Single Stage All Hardware, Fittings and Accessories Included Includes Jetting For 50 100 150 200 250HP High Horsepower: Nitrous Outlet's 4 cylinder direct port systems are designed to be high flowing for high horsepower applications. This system comes with one wet nozzle per cylinder capable of flowing 200 HP each. High
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 2019 reviews
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A
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APTYP
Houston, US
★★★★★ 5
💯% Authentic NGK Made in Japan.
Got these for my 2016 Subaru Crosstrek. You can't go wrong with NGK, these are 💯% AUTHENTIC, and made in Japan, unlike other NGK plugs that may be sold by other sellers which could be made in Thailand. The Subaru Crosstrek is running like a brand new vehicle after I put these puppies in it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
B
Verified Purchase
Britton Home Improvement
Natrona Heights, US
★★★★★ 5
buy these!!
these are legit original NGK, superior plugs, will buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
A
Verified Purchase
Anonymous User
Port Orchard, US
★★★★★ 5
Worked like a charm
Worked like a charm. The box and packaging were adequate from keeping the gaps of the plugs from being squished.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
T
Verified Purchase
TKmps
Dallas, US
★★★★★ 5
Perfect!!
As I expected, no more to say only I'm happy I got it.
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Reviewed in the United States on April 29, 2026
T
Verified Purchase
Timothy Dettman
San Leandro, US
★★★★★ 5
Works great
Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026

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