My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Nitrous Express 20946-12 Plate System with Composite Bottle - 4.6L 2-Valve 12lb

(Ford F-150 1997-2010, Mustang 1991-2005, Explorer 2002-05, Expedition 1997-2004, F-250 1997-99, Crown Victoria 1992-2011, Thunderbird 1994-97 + 12 more models)

Manufacturer

Part Number

20946-12
Sale Price

$1,811.07

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Nitrous Express 20946-12 is a complete nitrous oxide injection system engineered specifically for Ford 4.6L 2-valve engines. This plate-style system delivers instant power gains ranging from 35 to 150 horsepower with included jetting, and can be upgraded to support up to 300 horsepower with additional jets sold separately.

Key Features:

  • Phase 3 Spraybarless Technology: Advanced design ensures superior nitrous atomization and even distribution across all cylinders for maximum performance and safety
  • Bolt-On Installation: Precision-machined billet aluminum plate installs between the throttle body elbow and intake manifold for straightforward installation
  • Lightning Series Solenoids: High-flow nitrous and fuel solenoids provide precise metering and reliable activation
  • 12lb Composite Bottle: Lightweight composite construction reduces weight while maintaining DOT certification
  • Wide Open Throttle Switch: Automatically activates nitrous only at full throttle and deactivates when you lift off the accelerator for safe operation
  • Ford-Specific Fuel Adapter: Includes fuel rail adapter fitting designed for Ford applications—no cutting or splicing factory fuel lines required
  • Complete Installation Kit: Stainless steel braided lines, stainless bottle brackets, arming switch, full-color installation manual, and all necessary hardware, fittings, and electrical connectors
  • Adjustable Power Levels: Includes jet selection for 35, 50, 75, 100, 125, and 150 horsepower settings

This system is designed to fit 1996-2004 Ford Mustang GT models and other Ford vehicles equipped with the 2-valve 4.6L modular V8 engine. Everything needed for a complete installation is included in the kit, making this an ideal solution for adding significant power to your 4.6L Ford.

Products specifications

Fits

Ford F-150 1997-2010, Mustang 1991-2005, Explorer 2002-05, Expedition 1997-2004, F-250 1997-99, Crown Victoria 1992-2011, Thunderbird 1994-97, F-250 Pickup 1997-99, E-150 2003-14, E-250 2003-14, E-150 Econoline 1997-2003 + 8 more models

Activation

Microswitch/Push-button

Bottle

12Lb Composite Bottle

Bottle Bracket Material

Stainless steel

Bottle Brackets Included

Yes

Bottle Color

White

Bottle Included

Yes

Bottle Material

Aluminum

Delivery Style

EFI plate

Dual Stage

No

Maximum Advertised Horsepower Increase

300

Nitrous Bottle Capacity

12 lbs.

Nitrous System Style

Wet

Quantity

Sold as a kit.

Bottle Color

Carbon

Bottle Capacity

12

Add-On Part

15600, 15940, 16006, 18959, 11107

Hose Color

Stainless

Hose Material

Stainless Braided

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Easy to navigate and fast checkout.

Autoplicity had the best price I could find on an Invidia downpipe for my 08+ Subaru STI. I had to pay for shipping but the total price was still well below their competitors who advertised free shipping.<br><br>Thanks Autoplicity!<br>Matt

They were very help full and got me the best price possible.

They had the product I wanted at $20-$30 cheaper than anywhere else I could find. With free shipping as well. Wonderful company, will definitely buy more products from them.

Good

Hard to find part, in stock, and the best price around. Amazing!!!

"Wow. Great Price and extremely fast shipping. I had a CS question and they replied promptly and satisfactorily. I will definitely buy from Autoplicity again."

Great products and great prices! Highly recommend!

Bought an MSD ignition box from Autoplicity because they had the best price on the web. Always a little weiry of ordering from the lowest price vendor, but the service here has been second to none. I will always check here first in the future! And $5 back on my order to boot!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy