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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 (E85)(5-7-10 psi)(100-400HP)(No Bottle)

Marsoni M251S
Sale price$948.00
Pay 4 payments of $237.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Outlet 8 Cylinder Direct Port System - Two .122 Nitrous Solenoids/Two .177 Fuel Solenoids/Two Dual Passage Injection Rails/90 Degree Discharge Nozzles (E85)(5-7-10 psi)(100-400HP)(No 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 E85 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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  • We offer a 30-day return/exchange service after receiving.
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4.5 ★★★★★
Based on 130 reviews
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Product Reviews
H
Verified Purchase
Harold Rondon
Alexandria, US
★★★★★ 5
amazing product
Model: 36 Sqft
actually surprised how great the product is and way better priced then other companies. its sticky and also has thickness enough to cover metal parts on cars. i would recommend 100% just ordered another 18ft for the rear deck and to have some extra! does not smell. easy to install and helps stop vibration.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 5
No more scrolling. Best price, abundant, does its job.
Model: 36 Sqft, Model: 36 Sqft
I have it under the closed cell foam. It’s great. Just as great as Killmat and all the other butyl rubber products. Let me ask you to do something: look at the people who rated it 1 and 2 stars. No reviews. No pictures. Why? They don’t want to see the most budget friendly product getting sold. That’s some weak business. Rest assured you’ll be happy with this. Why did I buy both types? Butyl rubber helps the car not be a tin can. It keeps the outside road vibrations out. Closed cell phone keeps your music in. They work best together., Kumbaya, we have unity! We can get along, even in this age in time. The closed cell foam is cheap. You’ll get it to replace the nasty cloth under your carpet. Do the knock test. It won’t help. You need this too. And truth be told, I prefer that it has no name on it. I’m not paying money so you can brand yourself on my car. Ps: these products go on and don’t come off. Don’t mess up. It’s the same for the competitors and the closed cell foam. One shot. Do it right the first time. I’m writing this review after I used up my first box and am getting more. Happy returning customer.
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Reviewed in the United States on May 17, 2026
G
Verified Purchase
G.C.B.
Omaha, US
★★★★★ 5
Great stuff, well made.
Model: 36 Sqft
I was very pleased with this product. Very easy to use, flexible enough to conform to the variations of the surface (floor of the car and some side panels), and it stuck well. I topped it with a similar foam product to provide additional sound deadening. The car has not been run yet but the panels are much "quieter" when tapped on vs before with undercoating, felt and carpet. Seems well made and I expect no issues in the future.
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Reviewed in the United States on February 17, 2026
N
Verified Purchase
Nick
Birmingham, US
★★★★★ 5
Great quality!
Model: 36 Sqft
Works amazing!! Same quality as the name brand stuff but significantly cheaper.
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Reviewed in the United States on May 19, 2026
N
Verified Purchase
Nick
Carnegie, US
★★★★★ 5
Good inexpensive sound deadening
Model: 36 Sqft
This stuff works great, it's easy to apply, sticky, easy to cut. 36 ft.² was enough to do the inside and outside of my doors the roof, the wheel wells and rear fenders. Plus, it's a lot cheaper than others.
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Reviewed in the United States on February 8, 2026

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