Nitrous Express · New
Nitrous Express Assassin Plate Conversion 4500 ProPower(100-500HP)
MPN NX678 · Store SKU nexNX678
Supplier stock checked 11/7/2026, 9:03:37 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
Assassin plate conversion 4500 ProPower Nitrous Oxide Injector Plate
Manufacturer fitment & guides
Check NX678 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