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Nitrous Outlet Dry 4 Cylinder Dual Stage Direct Port System - Two .122 Nitrous Solenoids/Distribution Blocks/SBT Dual Passage Discharge Nozzles (50-250HP)(15lb Bottle)

Marsoni M251S
Sale price$809.50
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Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Outlet Dry 4 Cylinder Dual Stage Direct Port System - Two .122 Nitrous Solenoids/Distribution Blocks/SBT Dual Passage Discharge Nozzles (50-250HP)(15lb Bottle)Flow Up To 800HP Four Cylinder Dry System Distribution Blocks Dual Stage All Hardware, Fittings and Accessories Included Includes Jetting For 50 100 150 200 250HP High Horsepower. Nitrous Outlet's 4 cylinder direct port systems are designed to be high flowing for high horsepower applications. This system comes with two dry nozzles per cylinder capable of flowing 350 HP each. High Quality Construction. Nitrous Outlet direct port systems come complete
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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.
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4.6 ★★★★★
Based on 436 reviews
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R
Verified Purchase
Robert Edwards
Belleville, US
★★★★★ 5
Good Product
Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
M
Verified Purchase
MARC FOSTER
Whiting, US
★★★★★ 5
Worked perfectly
Excellent product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
K
Verified Purchase
KT
Waukegan, US
★★★★★ 4
Check the gap!
Plugs work great. I will say for those reviews saying they got a dud. CHECK THE GAP!!! Both plugs were not at 0.030 as advertised. I gapped the plug and it worked perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
M
Verified Purchase
mom12195
Lowell, US
★★★★★ 5
Great
Needed one for my mower, got a box of 2. Works great!
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Reviewed in the United States on May 20, 2026
J
Verified Purchase
James
West Palm Beach, US
★★★★★ 3
Didn’t work well in my B&S engine
Worked for 15 minutes. Repeatedly stalled. Replaced with name brand and ran like new. UPDATE. Seller immediately offered refund well outside refund window of opportunity. That’s nice to have someone stand behind their product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

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