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Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/o Bottle
Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/o Bottle
Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/o Bottle
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Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/o Bottle

Marsoni M251S
Sale price$545.04
Pay 4 payments of $136.26 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Express 4150 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/o 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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 283 reviews
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Product Reviews
C
Verified Purchase
Carlos Roberto de Goes
San Leandro, US
★★★★★ 5
Top product
Size: 34W x 30L, Color: Black
Outstanding item
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 4
Comfy and light
Size: 36W x 30L, Color: Black
Husband likes these…fit well and comfy…light enough for summer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
M
Verified Purchase
Martin Matye
West Palm Beach, US
★★★★★ 5
Stretchy Comfort
Size: 34W x 30L, Color: Dark Blue
Jeans were as described and quite stretchy which makes for a good fit. The size was as described. The quality was as good as the Big Box Stores for less money. The material is thinner than traditional western style baggy jeans but should still wear well. Nice traditional blue jeans color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Fit and color with affordability
Bought for my dad after he lost weight. He is 88 and they run true to size with stretch for him to put on by himself. Very satisfied with color and fit. They are not heavy like normal jeans which is a plus for our situation
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
S
Verified Purchase
Spawnofsatan
Louisville, US
★★★★★ 3
Style and Length
Size: 38W x 30L, Color: Dark Blue
Pants are not slim fit ,the material is stretchy but if you order them go down to a lower size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

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