Nitrous Express 4500 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/5lb Bottle

Nitrous Express 4500 Assassin Plate Pro Power Nitrous Kit (100-500HP) w/5lb Bottle

Marsoni

M251S

$622.85

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/5lb 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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Pros: Looks fantastic, just like the pictures The latch feels solid Packaging was nice and it arrived undamaged Price is good for what it is Cons Durability of the fake leather on the inside is questionable, I don’t think this is something you’ll be handing down to your kids or anything like that This thing has a smell that I’ve never smelled before but it is quite unpleasant… hopefully that fades after a bit but it’s really not nice at all out the gate

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Reviewed in the United States on March 19, 2026

Verified Purchase

Bruce Blanquart

Lake Worth, US

★★★★★ 5

Read description and check pics.

Color: Espresso

Box works well, for storage and display. It’s a bit shallow but works for flat storage. No key lock.

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Reviewed in the United States on April 27, 2026

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Alex Girard

Battle Creek, US

★★★★★ 5

Great gift

Color: Black, Color: Black

Minor defects but otherwise perfect! Looks and feels solid, tons of space, and a good price.

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Reviewed in the United States on December 25, 2025

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C. Hayes

Whiting, US

★★★★★ 5

Display window and additional storage

Color: Black

It has a nice carbon fiber look. The large window is great for displaying your watches and sunglasses. The box has plenty of room for rings, cuff links and necklaces.

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Reviewed in the United States on January 7, 2026

Verified Purchase

Josh

Bozeman, US

★★★★★ 5

Amazing value

Color: Black

Perfect jewelry box for my needs. Fits the watches nicely, I also use it for a few of my pocket knives. All fits well, looks great, definitely nothing over the top but simple, clean, and very functional.

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Reviewed in the United States on February 4, 2026