Home Nitrous Express 20421-10 Proton Plus Nitrous Kit w/10lb Bottle

Nitrous Express 20421-10 Proton Plus Nitrous Kit w/10lb Bottle

NOW $2,217.66
Or 4 interest-free payments of $554.41
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide

Nitrous Express 20421-10 - Proton Plus Nitrous Kit w/10lb Bottle Nitrous Oxide System - Proton Plus - Wet - Single Stage - 35-125 HP - 10 lb Bottle - White - Universal EFI - Kit PROTON PLUS NITROUS SYSTEM W/ 10LB BOTTLE Proton Series nitrous systems combine performance, durability and value in a compact and easy to mount module.

Proton systems contain high quality, made in the USA, solenoids that are capable of producing 150 horsepower to the wheels. The black anodized aluminum housing not only looks great, it pulls heat away from the solenoids for extreme durability.

This Proton Plus system includes jetting for 35HP, 50HP, 75HP, 100HP, 125HP and 150HP. This system also includes a 10lb nitrous bottle with an aluminum high flow Lightning 45 bottle valve, stainless bottle brackets, a single Shark nozzle, nozzle adapter, stainless braided nozzle lines, extra long braided stainless feed line, stainless fuel line, master arming switch, wide open throttle switch, 40 amp relay, relay harness as well as every nut, bolt and electrical connector needed to complete the installation.

Fits all electronic fuel injected vehicles with a single throttle body. 35-150 Wheel Horsepower Billet Aluminum Solenoid Box Lightning Bottle Valve Stainless Steel Bottle Brackets Incl. All Electrical Connectors NX Piranha Nozzles Aircraft Quality Steel Braided Hoses Incl.

All Hardware To Complete The Installation Add-On Part : 15940, 16006, 18959, 11107 Bottle Capacity : 10 Bottle Color : White Hose Color : Stainless Hose Material : Stainless Braided

Shipping Information

Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.


The Kren Bits journey:

  • Order received — Day 0
  • With fulfilment — Day 1–2
  • Heading to courier — Day 2–4
  • Shipped — Day 3–7
  • Almost there — Day 5–10
  • Delivered — Day 5–14

Where your part ships from:

Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.


We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.


For more details, visit our Track Your Order page.

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