


Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle
Marsoni
M251S
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.
Quick Dispatch:
Your Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle ships.
Need Help?
Questions about Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/15lb Bottle in your area.
Get Shipping Estimates
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
You may also like
4.6 ★★★★★
Based on 1794 reviews
Sort
Product Reviews
★★★★★ 3
Choking hazard from Internal Pieces if Ball
Size: Large, Color: Ball-Blue
The Ball is Very Tough. However, the inside Parts Broke and Fall out and can be Choking Hazard.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
★★★★★ 5
Great for chewers!
Size: Large, Color: Ball-Blue
We have a super high energy one year old pup who destroys practically every toy she gets. This one is excellent! It makes a fun but not annoying sound and she hasn’t been able to destroy it yet. The test hole is a fun addition to keep her busy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 16, 2025
★★★★★ 5
Very sturdy toy for aggressive chewers
Size: Large, Color: Bone-Blue
My 80-pound American Bully loves this toy. It is very sturdy. Good price. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 1
My Dog Loved It—Until It Stopped Working
Size: Large, Color: Ball-Red
I purchased this treat-dispensing dog toy for my German Shepherd, and for the first couple of days it worked exactly as advertised. When rolled or tossed, it made an engaging sound that immediately caught my dog’s attention and encouraged him to interact with the toy to get the treats out. He absolutely loved it.
Unfortunately, after only a few days, the sound feature stopped working. Then it mysteriously started working again for a short period, so I thought the issue had resolved itself. However, it has now stopped completely. No matter how much I shake, roll, or toss the toy, it no longer makes any sound.
I went out of town and didn’t realize the return window had passed while I was gone. By the time I returned, the return deadline had already expired, which was disappointing because I would have returned it when the problem first appeared.
Based on my experience, I cannot recommend purchasing this toy. While many of the reviews seem positive, perhaps I received a defective unit. It’s disappointing that it stopped functioning properly after barely a month of use.
That said, my dog genuinely enjoyed it when it was working, and I would appreciate it if the manufacturer would stand behind their product and offer a replacement as a courtesy. I would be happy to return the defective toy. If a replacement performed as intended, I would gladly reconsider my opinion.
For now, however, I am very disappointed with the functionality and reliability of this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
Toy bouncy balls for puppy
Color: Yellow/Blue, Size: 2 in
My puppy loves, loves, loves these balls. We can even put treats or dry dog food in the open grooves to add in the playtime. These small balls are the perfect size for our Yorkie. He can easily grab them in his mouth to retrieve them and carry them to wherever he wants. He even likes rolling them around as he pushes them with his nose. Very entertaining toy for puppy and us.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026