What horsepower levels can this kit support?

This Nitrous Express kit includes jetting for a wide range of horsepower gains, from 100 HP up to 400 HP. This allows you to tune the system to your specific needs and desired performance increase.

Does this kit include a nitrous bottle?

No, this specific kit (part number 20917-00) does not include a nitrous bottle. It includes all other necessary components for the nitrous oxide injection system, such as solenoids, lines, switches, and jetting.

How does the TPS Autolearn switch work?

The TPS Autolearn switch ensures the nitrous system only activates when your throttle is fully open (wide open throttle). It automatically shuts off the nitrous flow the moment you lift your foot off the accelerator, enhancing safety and control.

Specifications

Brand: Nitrous Express
Part #: 20917-00
UPC: 653374979047

Nitrous Express GM LS 112mm Adapter Plate Kit (100-400HP) w/o Bottle

Name: Nitrous Express GM LS 112mm Adapter Plate Kit (100-400HP) w/o Bottle
Brand: Nitrous Express
SKU: nitrous-express-nitrous-express-gm-ls-112mm-adapter-plate-kit-100-400hp-w-o-bott-t14-472716
Price: 1120.76 USD
Availability: BackOrder

$1120.76

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Nitrous Express LS 112mm Adapter Plate Kit (100-400HP) w/o Bottle. Features spraybarless technology for improved atomization and distribution.

Key Features

Fits GM LS engines with a 112mm throttle body opening.
Features spraybarless technology for improved atomization and distribution.
Billet adapter plate bolts between the throttle body and intake manifold for a clean installation.
Integrated solenoids reduce clutter and simplify the install process.
Includes a direct-plug-in fuel line adapter, eliminating the need to cut factory fuel lines.
Equipped with a TPS Autolearn switch for activation only at wide open throttle.

This adapter plate system is designed for GM LS engines with a 112mm throttle body. Please verify your vehicle's throttle body size and intake manifold configuration before purchase.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Nitrous Express is well-known for their nitrous oxide systems, and this 112mm adapter plate kit for GM LS engines is a prime example of their approach. This system is designed to bolt directly between your throttle body and intake manifold, making installation straightforward. It uses spraybarless technology, which helps ensure the nitrous and fuel are evenly distributed and properly atomized for consistent power delivery.

The plate itself is made from billet material and integrates the solenoids directly into its design, creating a clean look under the hood. You also get a fuel line adapter that connects directly to your factory fuel lines, so there's no need to cut them. For safety and ease of use, this kit includes a TPS Autolearn switch that ensures the nitrous only activates when your throttle is fully open and shuts off automatically when you lift off the pedal. The system comes with jets for a wide range of horsepower gains, from 100 up to 400 horsepower, allowing you to tune the system to your needs. You'll also find a stainless braided nitrous line, a master arming switch, relay, and all the necessary hardware to get it installed.

While this kit does not include a nitrous bottle, it comes with everything else you need to get the system operational, including the jetting for multiple power levels. Remember that this system is not CARB approved and cannot be shipped to California.