Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle

Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle

Marsoni

M251S

$618.34

Get it in 3 business days with 1 day shipping. Friday, May 29

Nitrous Express 4150 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.
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Been going through these for about two years now across multiple replacements and they perform just as well as the official Eufy parts. Main brush, side brushes, filters, dust bags, mop — all fit correctly and do the job without any issues. Honestly if you’ve got a Eufy Omni S1 Pro, just buy these instead. No reason to pay extra for the official kit when these hold up just as well over time. No complaints

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Reviewed in the United States on March 22, 2026

Verified Purchase

Tytan Olmstead

Cuba, US

★★★★★ 5

Amazing replacement parts

Color: Omni S1 Pro 17P

Works just like original parts, and fits my s1 perfectly. Mops are super easy to change and clean

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Reviewed in the United States on November 21, 2025

Verified Purchase