Nitrous Express 4 Cyl Gasoline EFI Nitrous Kit (50-250HP) w/10lb Bottle

Nitrous Express 4 Cyl Gasoline EFI Nitrous Kit (50-250HP) w/10lb Bottle

Marsoni

M251S

$794.00

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

Nitrous Express 4 Cyl Gasoline EFI Nitrous Kit (50-250HP) w/10lb BottleThe NX direct port EFI systems are for the crowd who have already modified their engines with high strength internal engine parts. These systems utilize the patented NX 'Piranha' nozzle and are adjustable up to 300 Horsepower! Available standard with high tech distribution blocks, optional 'Next Generation' rail technology. Nitrous system comes complete with nitrous bottle, stainless bottle brackets, stainless hard lines, nozzles, jetting, and all

Easy Shipping

Quick Dispatch:

Your Nitrous Express 4 Cyl Gasoline EFI Nitrous Kit (50-250HP) w/10lb 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 4 Cyl Gasoline EFI Nitrous Kit (50-250HP) w/10lb Bottle ships.

Need Help?
Questions about Nitrous Express 4 Cyl Gasoline EFI Nitrous Kit (50-250HP) w/10lb 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 4 Cyl Gasoline EFI Nitrous Kit (50-250HP) w/10lb 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

Installed this o-ring kit on a 2009 Honda Odyssey. The steering pump was making noise and you could see bubbles in the fluid revivor when the engine was idling indicating a potential air leak from where the hoses attach to the pump. The most difficult part was finding the right 10mm wrench that would allow me to access the lower hose mounting bolt without removing the belt or pump pulley. I wound up taking an old wrench, heated it with a torch, and bent it in a vice to get the right fit. I did order a ratcheting, flex head wrench but while waiting for it to be delivered I was able to make something work. Overall, the o-ring kit worked great, the o-rings seem high quality and this fixed my issue. If you don't already have some, make sure to order the power steering fluid required for Asian/Honda vehicles when you order these o-rings.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 24, 2025

Verified Purchase

Amazon Customer

New York, US

★★★★★ 5

Works great

Worked great and easy to install

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 21, 2026