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Nitrous Outlet 8 Cylinder Dual Stage Direct Port System - Four .112 Nitrous Solenoids/Four .177 Fuel Solenoids/Compact Distribution Blocks/Compression Fittings/Annular Discharge Nozzles (Alcohol)(5-7-10 psi)(100-400HP)(15lb Bottle)

Marsoni M251S
Sale price$1935.49
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Nitrous Outlet 8 Cylinder Dual Stage Direct Port System - Four .112 Nitrous Solenoids/Four .177 Fuel Solenoids/Compact Distribution Blocks/Compression Fittings/Annular Discharge Nozzles (Alcohol)(5-7-10 psi)(100-400HP)(15lb Bottle)Flow Up To 800HP Per Stage . 112 Nitrous & . 177 Fuel Solenoids Wet System Dual Stage All Hardware, Fittings and Accessories Included Includes Jetting For 100 200 300 400HP Straight Blow Through Nozzles 5, 7, 10psi Fuel Jets Included High Horsepower: Nitrous Outlet's 8 cylinder direct port systems are designed to be high flowing for high horsepower applications. This system comes with two Titanium Vortex Ti 1 16" NPT wet nitrous nozzles per cylinder
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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4.0 ★★★★★
Based on 640 reviews
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J
Verified Purchase
Jerry Sonnier
Charlottesville, US
★★★★★ 5
Fit Great. Works great.
Fit perfectly Mercruiser 4.3
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Boat once again starts
Easy install once I figured out how to reach the starter. Worked first try and my boat is starting again. I think being a contortionist would help with the install since it is under the engine and boats typically only have access from the top. It probably took me an hour to get the old one off and about 30 min to install the new. The symptom of the broken one was a click sound when trying to start the motor, but nothing turning over. Same sound with new. Battery or a jumper.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 10, 2025
T
Verified Purchase
Todd McCarty
Lexington, US
★★★★★ 5
Exactly what I needed
I didn't know my current starter was getting that bad over the years. But this is perfect, shipped on time, matched perfectly, boat started like it's never ran prior. I have owned this boat for 13 years. Very pleased
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
M
Verified Purchase
Milissa
Los Angeles, US
★★★★★ 5
Great starter for the best price
Great price and same exact part as the ones twice the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2025
R
Verified Purchase
ray whit
Lake Worth, US
★★★★★ 5
Water impeller Johnson
Size: 85-300 HP
Worked perfect for my 1988 Johnson 88 spl already been on the water, no issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026

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