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Nitrous Outlet 4 Cylinder Direct Port System - .122 Nitrous Solenoids/.177 Fuel Solenoids/Dual Passage Injection Rail/Annular Discharge Nozzles (Gas)(45-55 psi)(50-250HP)(15lb Bottle)

Marsoni M251S
Sale price$826.50
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Nitrous Outlet 4 Cylinder Direct Port System - .122 Nitrous Solenoids/.177 Fuel Solenoids/Dual Passage Injection Rail/Annular Discharge Nozzles (Gas)(45-55 psi)(50-250HP)(15lb 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.
  • Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 479 reviews
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Verified Purchase
Cuz
Louisville, US
★★★★★ 5
Works Great
Number of Items: 1
I have a 1988 mercury/mariner 75 hp motor. My motor would not go down. Purchased this solenoid to replace the old one. Fit perfect and fixed my problem
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2025
G
Verified Purchase
Gary Miller
New York, US
★★★★★ 5
Just the part I needed
Number of Items: 1
It was a perfect match to the one I needed to replace. And the shipping was lightning fast
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
S
Verified Purchase
steven clark
Lake Worth, US
★★★★★ 5
Works great
Number of Items: 1
Works great easy fix for my Merc. Trim motor
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 3, 2025
L
Verified Purchase
Lori
Cuba, US
★★★★★ 5
Worked well
Number of Items: 1
Worked well for the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025
R
Verified Purchase
Robert Zeigler
Natrona Heights, US
★★★★★ 4
Buy
Number of Items: 2
Great deal
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 24, 2025

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