Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb Bottle

Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb Bottle

Marsoni

M251S

$1403.50

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/12lb 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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I wasn’t expecting to love this backpack as much as I do, but wow —it’s everything I wanted and more. The apricot color is soft and pretty without being too “girly,” and the fabric has a nice matte texture that feels durable yet lightweight. It doesn’t have a plasticky smell at all, just a clean, new bag scent right out of the packaging. The compartments are super well thought out. I can fit my 16-inch laptop, chargers, skincare pouch, and even a change of clothes without the bag looking bulky. The back padding is surprisingly comfy, especially during long airport days, and the straps don’t dig into my shoulders. It sits well on my carry-on handle, making it the perfect travel companion. If you’re into functionality and aesthetics, this is it.

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Reviewed in the United States on July 31, 2025

Verified Purchase

Jamie Whitten

Lexington, US

★★★★★ 5

Great bag!

Color: A-darkgreen, Size: 16 Inch

Best computer bag! I absolutely love the color and quality. It will last a long time. Fits my 16” computer with room

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Reviewed in the United States on April 22, 2026

Verified Purchase

Zamira Gonzalez

New York, US

★★★★★ 5

Stylish, spacious, and perfect for travel

Color: Upgrade-apricot, Size: 16 Inch

This backpack is well-made and very practical for travel. It offers plenty of space, well-organized compartments, and feels comfortable to carry even for long periods. The design is sleek and modern, making it suitable for both travel and daily use. Great quality for the price.

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Reviewed in the United States on January 31, 2026

Verified Purchase

Alberto Gomez

Chelsea, US

★★★★★ 5

Great quality and very practical

Color: Upgrade-apricot, Size: 16 Inch, Color: Upgrade-apricot, Size: 16 Inch

I’m very happy with this backpack. The material feels sturdy and well-made, with a smooth finish that looks elegant and easy to clean. The size is perfect—not too big or bulky, but still spacious enough to carry everything I need. The stitching and zippers feel strong and reliable.

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Reviewed in the United States on January 20, 2026

Verified Purchase

Amanda Agnello

New York, US

★★★★★ 5

Great quality for the price!

Color: Upgrade-darkgreen, Size: 16 Inch

Great backpack with lots of pockets. Due to the price I was worried about the quality, but I have used it for a few months now and it's holding up great. Love the color and would recommend!

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Reviewed in the United States on May 1, 2026