Skip to content

Nitrous Express 4500 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb Bottle

Marsoni M251S
Sale price$981.68
Pay 4 payments of $245.42 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/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.
Easy Shipping

Quick Dispatch:

Your Nitrous Express 4500 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb 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 4500 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb Bottle ships.

Need Help?
Questions about Nitrous Express 4500 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb 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 4500 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb 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
4.6 ★★★★★
Based on 679 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Matt
New York, US
★★★★★ 5
Super comfortable size 12
Size: 12, Color: All Black
The quality is great the style and fit is great they're awesome and super comfortable! First pair of shoes in 30 years that don't hurt my feet I like them a lot! Size 12
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
D
Verified Purchase
David
New York, US
★★★★★ 4
Good quality shoe for a decent price.
Size: 9, Color: Grey
Very decent quality, lightweight shoe. Comfortable and cushioned for all day wear. I would definitely purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
J
Verified Purchase
Jennifer Peterson
Lexington, US
★★★★★ 5
Great value
Size: 12, Color: All Black
I have 3 pairs of these shoes. They are super comfy. The price is amazing for a shoe so well built. They are light weight look really nice on. Buy them, well worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
D
Verified Purchase
D. Smith
Whiting, US
★★★★★ 5
Worth the price
Size: 10, Color: White
Stylish and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
P
Verified Purchase
PizzaTheHutt
Draper, US
★★★★★ 1
Avoid These Shoes
Size: 10, Color: Grey
The pair I received (gray) was not represented well in their photos. Mine had a lime green logo which looks silly. They also bunch up very badly when you pull the laces which looks ridiculous. Cheap feeling and look bad when tied. Sending back
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026

recommand products