Nitrous Express · New
Nitrous Express Mainline Direct Port Low Press Nitrous Kit w/10lb Bottle
MPN ML4000 · Store SKU nexML4000
Supplier stock checked 11/7/2026, 4:49:39 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
If you are a serious nitrous junkie on a tight budget we have what you have been waiting for! NX introduces MainLine Nitrous Systems. MainLine Systems benefit from the years of research and development that made Nitrous Express the leader in the nitrous world, but at a price even the most budget-restricted racer can afford. Just the basics, no frills, just rock solid performance at rock bottom prices. Includes Jetting from 50-250HP and can be jetted up to 500HP with additional jetting. Includes Stainless Steel Bottle Brackets, NX Piranha Nozzles, Aircraft Quality Steel Braided Hoses, 12ft Stainless Steel Braided 4AN Feedline and Nickel Plated Fittings. Made in U.S.A. MAINLINE DIRECT PORT, LOW PRESS, W/ 10LB BOTTLE MAINLINE DIRECT PORT; LOW PRESS; W/10LB BOTTLE Nitrous Oxide Injection System Kit
Manufacturer fitment & guides
Check ML4000 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
