Nitrous Express 4150 Assassin Plate System Pro Power Alcohol 100-500HP (w/o Bottle)

Nitrous Express 4150 Assassin Plate System Pro Power Alcohol 100-500HP (w/o Bottle)

Marsoni

M251S

$595.04

Get it in 3 business days with 1 day shipping. Friday, May 29

Nitrous Express 4150 Assassin Plate System Pro Power Alcohol 100-500HP (w/o Bottle)Nitrous Express. N2O Injector 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 System Pro Power Alcohol 100-500HP (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 System Pro Power Alcohol 100-500HP (w/o Bottle) ships.

Need Help?
Questions about Nitrous Express 4150 Assassin Plate System Pro Power Alcohol 100-500HP (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 System Pro Power Alcohol 100-500HP (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

Like most people I have tried all kinds of pillows to receive my stiff neck--to no avail. I decided to spend the extra money on this (since it was returnable) expecting it not to deliver, but in hopes that it would. I am happy to say the pillow provides great support, yet is fluffy and malleable. It looks a little flat out of the box, but give it an hour or so and it expands to full "fluff". The pillow is very comfortable, provides amazing support despite its soft, fluffy feel. Not being sculpted or rigid foam, it is easy to adjust and get the right support. Somehow it works! I have not had a stiff neck since I bought this. I did add about half the bag of extra material, but removed some because it was a little too much for me. The stuffing is clean, uniform and looks pristine. It comes with a beautiful pillow case that is thick and smooths out any "lumps" (which there aren't anyway because the filling is so soft and uniform.) I plan to order another one for our other home. Highly recommend.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 12, 2026

Verified Purchase

Stephanie

Lowell, US

★★★★★ 5

Great quality, not cheap but totally worth this price!

Size: King

I bought this pillow for my husband because the other I’ve purchased have gone flat. So far he is loving this pillow. It has great loft and comes with extra to adjust if necessary. I’m going to purchase one for myself as well! It is extremely comfortable!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 8, 2026

Verified Purchase

CGB

Boise, US

★★★★★ 4

You have to reposition to stay cool

Size: Queen

It's okay...it isn't much better than other cooling pillows I have had. If I had known you can't wash this pillow, only the outside cover, I would not have paid so much. The cover is cool to touch but the heat from your head will penetrate the pillow and I am constantly having to turn it over. So it is ok but way overpriced.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on August 14, 2025