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Nitrous Outlet 8 Cylinder Solenoids Forward Direct Port Conversion Kit - Two .178 Trashcan Nitrous Solenoids/Two .177 Fuel Solenoids/Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Includes 200HP Jetting - Gas/7 psi)
Nitrous Outlet 8 Cylinder Solenoids Forward Direct Port Conversion Kit - Two .178 Trashcan Nitrous Solenoids/Two .177 Fuel Solenoids/Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Includes 200HP Jetting - Gas/7 psi)
Nitrous Outlet 8 Cylinder Solenoids Forward Direct Port Conversion Kit - Two .178 Trashcan Nitrous Solenoids/Two .177 Fuel Solenoids/Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Includes 200HP Jetting - Gas/7 psi)
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Nitrous Outlet 8 Cylinder Solenoids Forward Direct Port Conversion Kit - Two .178 Trashcan Nitrous Solenoids/Two .177 Fuel Solenoids/Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Includes 200HP Jetting - Gas/7 psi)

Marsoni M251S
Sale price$829.00
Pay 4 payments of $207.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Outlet 8 Cylinder Solenoids Forward Direct Port Conversion Kit - Two .178 Trashcan Nitrous Solenoids/Two .177 Fuel Solenoids/Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Includes 200HP Jetting - Gas/7 psi)Flow 400+ HP Single Stage . 178" Nitrous & . 177" Fuel Solenoids 20ft 3 16" Hardline 16 3AN B Nuts 16 3AN Sleeves Nozzles, Solenoids & Hardware Included Aluminum 90 Nozzles Solenoids Forward Conversion: This solenoids forward direct port conversion kit comes with everything you need to replace your current system with a direct port system, or to replace your current softline hardline direct port system with Nitrous Outlet's proven race ready products.
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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.
  • To process your return/exchange, please contact us at [email protected]
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4.4 ★★★★★
Based on 506 reviews
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Product Reviews
K
Verified Purchase
Kenny
Massapequa, US
★★★★★ 3
Incorrect motor listed. Far smaller impeller than what's in the 6 horse johnson.
Size: For 5.5HP 6HP 7.5HP
It seems to be of good quality. However it does not fit a 6 horse johnson as it states. Therefore it will not pump water or function for my purposes. It was a waste of money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
O
Verified Purchase
Outcast
Fort Morgan, US
★★★★★ 5
Good product
Worked for what I needed. Fit great and easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
R
Verified Purchase
R
Lowell, US
★★★★★ 5
Old Merc Inline 6s - 1500, 1400, 1250, 1150
This is the second time I purchased from them. The kits are good quality, and impeller is durable. Pictures is the initial one I purchased from them two seasons ago. It had hundreds of hours on it, plus me accidentally cooking it for 3 mins without water hooked up to the engine - which is why I purchased it again. Given 2 seasons of use and my recent screw up it held up well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 11, 2024
J
Verified Purchase
Justin D.
Carnegie, US
★★★★★ 4
Merc black max 150
Good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2024
R
Verified Purchase
Rob
Los Angeles, US
★★★★★ 5
Best bang for your buck kit!
Can’t beat the price by any means. Total rebuild kit for Mercury 115 outboard for less than half the price and all high quality parts nothing cheap about this kit at all except the price. Highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2024

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