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Nitrous Express 4500 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle

Marsoni M251S
Sale price$629.89
Pay 4 payments of $157.47 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Nitrous Express 4500 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.
  • Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 1965 reviews
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Verified Purchase
Sam
Boise, US
★★★★★ 5
Very sturdy toy
Color: Blue
It’s very sturdy and has a surface and handle that allows a dog to grip on for a good tug. It’s also holding up to my very, very aggressive chewer and she’s 80-90 lbs.
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Reviewed in the United States on February 4, 2026
M
Verified Purchase
Mindy Thegreatest
Louisville, US
★★★★★ 5
Very durable! Great value!
Color: Green
My dog loves this toy, heavy duty, she has not chewed it up yet!
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Reviewed in the United States on March 14, 2026
S
Verified Purchase
Sharon r Hatch
Draper, US
★★★★★ 5
Only “tough” toy my Doberman loves!
Pattern Name: Octopus
Not indestructible, but last a good long while. Definitely worth the money and lasts longer than any other plush toys we’ve had (which is all my dog will play with). It’s for sure my Dobermans favorite, I’ve ordered probably 10 at this point. He gets the stuffing out after a month or two and we open a new one. He’s picky with toys, either destroys them or ignores them, but he never gets bored with his octopus! 🐙 He sneaks one outside once in a while and the neighbor’s dogs steal it. They love it too and thankfully can’t destroy before I retrieve it.
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Reviewed in the United States on December 22, 2025
C
Verified Purchase
Christina
Bozeman, US
★★★★★ 5
Great for a Pitball
Pattern Name: Octopus
I have a Pitbull and she absolutely loves this toy. I always wait a while before giving a review. She has had this toy Since the beginning of July and she is still playing with this toy. It does have little holes but it is still going. She loves it. Playing tug of war with her. I also take it and wrap it around her collar and watch her dance around trying to get it out(I don't leave it there long). This a great buy. I also bought and extra one so when this one does finally dies she will have another. The material is strong, The sound is about normal for a squeaky toy.
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Reviewed in the United States on December 30, 2025
R
Verified Purchase
Robert
Boise, US
★★★★★ 3
Cute, but not tough enough.
Pattern Name: Octopus
This toy is cute, my pug loves it, and I like how the legs are strong but the top of the octopuses head isn't tough enough which is worrisome because thats where the squeaker is. It might work out for a smaller dog though.
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Reviewed in the United States on June 12, 2026

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