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Nitrous Express 4500 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle

Marsoni M251S
Sale price$629.89
Pay 4 payments of $157.47 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Express 4500 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb BottleAssassinate the competition with the Assassin plate system. The Assassin is the most technically advanced single stage plate ever designed. The CNC machined design integrates the nitrous and fuel discharge ports into the outer perimeter. The Assassin offers a unique perimeter spray pattern that assures perfect nitrous fuel distribution. Which in turn solves the problems commonly found on single plane manifolds, particularly small and big block Fords.
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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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4.7 ★★★★★
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Verified Purchase
James dean
West Palm Beach, US
★★★★★ 5
Great price
Great fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 22, 2025
B
Verified Purchase
brettjl
Lexington, US
★★★★★ 5
Filter that Fits
Perfect fit for my F350, 6.7L Powerstroke.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 22, 2025
D
Verified Purchase
De Jesus
Lowell, US
★★★★★ 5
Great starter!
Excellent! A year later and it is still going strong! It will probably outlast the truck.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
S
Verified Purchase
Stephanie Quintana
Lake Worth, US
★★★★★ 5
I got exactly what I ordered!
It was the correct part as listed.
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Reviewed in the United States on April 30, 2026
S
Verified Purchase
sandra vines
Grantham, US
★★★★★ 5
Starter
Great product
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Reviewed in the United States on April 2, 2026

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