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Nitrous Outlet 8 Cylinder Direct Port System - Two .122 Nitrous Solenoids/Two .177 Fuel Solenoids/Two Dual Passage Injection Rails/90 Degree Discharge Nozzles (Gas)(5-7-10 psi)(100-400HP)(15lb Bottle)

Marsoni M251S
Sale price$1016.50
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Nitrous Outlet 8 Cylinder Direct Port System - Two .122 Nitrous Solenoids/Two .177 Fuel Solenoids/Two Dual Passage Injection Rails/90 Degree Discharge Nozzles (Gas)(5-7-10 psi)(100-400HP)(15lb Bottle)Flow Up To 800HP Eight Cylinder . 122 Nitrous & . 177 Fuel Solenoids Wet System 2 Untapped Rails Single Stage All Hardware, Fittings and Accessories Included Includes Jetting For 100 200 300 400HP 5, 7, 10psi Gas Jetting Included 90 Aluminum Nozzles High Horsepower: Nitrous Outlet's 8 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
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4.8 ★★★★★
Based on 528 reviews
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Verified Purchase
Beni
Lowell, US
★★★★★ 5
Does its job.
Always a go to before oil changes. Helps remove some extra sludge/deposits. DO NOT DRIVE OR REV THE VEHICLE WHEN USNG THE PRODUCT, only idle for 10-15 min. Ive seen reviews where people drove with it potentially ruining the engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
A
Verified Purchase
Adan Ichich
Omaha, US
★★★★★ 5
Calidad de limpieza al motor
Excelente producto, lo llevo usándolo un buen tiempo, en cada cambio de aceite, limpia bien por dentro del motor. Es fácil usarlo, hecharlo donde se llena el aceite del motor, y enciende el motor espere 10 minutos, y apague el motor, y vuelve a esperar 25 o 30 minutos para que se enfríe el motor, ya cumplido lo 25 o 30 minutos sacar el aceite viejo del motor. Listo, producto muy recomendable. Excelente funcionamiento, chevy silverado 2004
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Reviewed in the United States on March 15, 2026
K
Verified Purchase
Kwang's Chowover
Port Orchard, US
★★★★★ 5
Good
Very nice very good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
J
Verified Purchase
John sutton
Battle Creek, US
★★★★★ 5
Excellent plugs, superb performance
Exactly as described at a decent price. I've found over my decades of doing my own tune ups, the one thing you can't skimp on when tuning up your vehicle, plugs and its shows if you do. Out of the box, all 4 were gapped correctly. Ease of installation depends on your vehicle and ones mechanical ability with PATIENCE. 100% compatible with my vehicle, be sure to match you numbers. Overall 5 stars for performance and price.
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Reviewed in the United States on May 14, 2026
A
Verified Purchase
APTYP
Port Orchard, 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.
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Reviewed in the United States on December 23, 2025

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