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

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

Marsoni

M251S

$501.74

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/o BottleNitrous Express. 4150 Assassin Plate Assassinate 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

Easy Shipping

Quick Dispatch:

Your Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/o 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/o Bottle ships.

Need Help?
Questions about Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/o 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/o Bottle in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

These brackets are heavy duty and came with the correct hardware. They were easy to install, the two holes were so helpful to know where to mark them. I think because they’re heavy duty you can place a good amount of weight on your shelves. The only thing I wasn’t happy with is that 4/69 of shelves, the paint was chipping but it was the perfect gold color.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 14, 2026

Verified Purchase

Port

Massapequa, US

★★★★★ 5

Really nice looking work great

Size: 4 Inch, Color: Black

Great looking

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 8, 2026

Verified Purchase

Sharon

Draper, US

★★★★★ 5

Don't hesitate - Great product!

Size: 12 Inch, Color: Black

Superior quality at an unbelievable savings over local retailers. Hardware for hanging included the cheaper plastic lags yet they also included the heavy duty lags, so no tapping in to our supply. Thank you for a great product

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on December 13, 2025