Skip to content

Nitrous Outlet 8 Cylinder Dual Stage Direct Port System - Four .122 Nitrous Solenoids/Four .177 Fuel Solenoids/Compact Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Gas)(5-7-10 psi)(100-400HP)(12lb Bottle)

Marsoni M251S
Sale price$1888.49
Pay 4 payments of $472.12 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Outlet 8 Cylinder Dual Stage Direct Port System - Four .122 Nitrous Solenoids/Four .177 Fuel Solenoids/Compact Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Gas)(5-7-10 psi)(100-400HP)(12lb Bottle)Flow Up To 800HP Per Stage . 122 Nitrous & . 177 Fuel Solenoids Wet System Dual Stage All Hardware, Fittings and Accessories Included Includes Jetting For 100 200 300 400HP 90 Aluminum Nozzles 5, 7, 10psi Gas 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 wet nozzles per cylinder capable of flowing 200 HP each. Racers
Easy Shipping

Quick Dispatch:

Your Nitrous Outlet 8 Cylinder Dual Stage Direct Port System - Four .122 Nitrous Solenoids/Four .177 Fuel Solenoids/Compact Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Gas)(5-7-10 psi)(100-400HP)(12lb Bottle) orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Nitrous Outlet 8 Cylinder Dual Stage Direct Port System - Four .122 Nitrous Solenoids/Four .177 Fuel Solenoids/Compact Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Gas)(5-7-10 psi)(100-400HP)(12lb Bottle) ships.

Need Help?
Questions about Nitrous Outlet 8 Cylinder Dual Stage Direct Port System - Four .122 Nitrous Solenoids/Four .177 Fuel Solenoids/Compact Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Gas)(5-7-10 psi)(100-400HP)(12lb Bottle), sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Nitrous Outlet 8 Cylinder Dual Stage Direct Port System - Four .122 Nitrous Solenoids/Four .177 Fuel Solenoids/Compact Distribution Blocks/Compression Fittings/90 Degree Discharge Nozzles (Gas)(5-7-10 psi)(100-400HP)(12lb Bottle) in your area.

Get Shipping Estimates

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]
  • Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 92 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Bob Valentine
Phoenix, US
★★★★★ 1
Warning!!!
I was so impressed after install!! Fired right up faster that it ever has in the past, had the boat out about 8 times and CACK!!! They say they will stand behind the product and replace it, but do I risk another day ruined on the river? Btw, I have a Volvo penta 5.0 21.5' Larson I/O
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2025
M
Verified Purchase
Maris I.
Fort Morgan, US
★★★★★ 5
Perfect fit and functioning. Excellent support
The starter fit perfectly, in my Mercruiser 4.3 from 2004, although it was awkward to replace on my engine due to space constraints. I had a few questions for the supplier and quickly received very descriptive answers. Now the starter works perfect in my boat. In all a very good choice which I really can recommend others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 27, 2024
A
Verified Purchase
A. WEAVER
Boise, US
★★★★★ 5
New starter
Part came promptly and was a direct match to the original starter. I did a bench test prior to install and had no issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 16, 2025
R
Verified Purchase
Roy W.
San Leandro, US
★★★★★ 5
Right part
Wonderful, part was right the firstt time,AWSOME!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 26, 2025
E
Verified Purchase
10ESSEE
Lake Worth, US
★★★★★ 3
Bit Longer than Genuine Quicksilver Starter Not same fit
It’s close to the Quicksilver Mercruiser starter but it’s not the same length and size. Also the internal gear sits differently. My 2012 Tahoe Mercruiser Alpha 3.0 has a back bracket that would not fit on because this starter is longer. I didn’t take the risk of testing it out by starting it as I noticed the gear inside sits a bit different and there is a knob on the front of the housing as the original does not. I’m not taking any chances. I just returned it and ordered the actual Quicksilver Starter that’s a little more $$ but totally worth it to have a proper fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2025

recommand products