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Nitrous Express 4500 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb Bottle

Marsoni M251S
Sale price$629.47
Pay 4 payments of $157.37 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Express 4500 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/10lb 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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4.6 ★★★★★
Based on 1543 reviews
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Verified Purchase
Foreverfit
Fort Morgan, US
★★★★★ 5
fits my S1 perfectly
Color: Omni S1 Pro 17P
works well with my vaccum
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2025
L
Verified Purchase
lilas bouskila
Lake Worth, US
★★★★★ 3
Not a good fit with the eufy
Color: Omni S1 Pro 17P
It’s a good value for all these pieces, but the dust bag does not fit well with the Juvi. I haven’t tried the other piece pieces. I will return it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025
V
Verified Purchase
Vinny
Cuba, US
★★★★★ 4
Mostly fine replacement parts
Color: Omni S1 Pro 17P
I can't get either of the rolling mops to snap into place no matter what i do, might have to tack on something so they stay in place. The main brush was a fine fit, but the side brushes seems more flat than the stock ones and it makes some weird noise now, they did snap on though. Filter was fine though and I haven't tried a dust bag yet, still good value even if I can't get the mops to fit for me!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025
J
Verified Purchase
JASON D LONG
Houston, US
★★★★★ 5
Good quality overall
Color: Omni S1 Pro 17P
Good kit I ordered for my S1 Pro. All of the accessories seem to be of good quality and have held up well over time. Order without hesitation.
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Reviewed in the United States on May 4, 2026
M
Verified Purchase
Marco Carranza
Cuba, US
★★★★★ 5
It works
Color: Omni S1 Pro 17P
Is compatible with my vacuum and had no issues
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2025

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