Snow Performance Injection Plate

2008–2020 Chrysler 300 / Dodge Challenger / Charger / Magnum 5.7L, 6.1L, 6.4L HEMI

Part #: SNO-40073

Overview

The Snow Performance 80mm Water-Meth Injection Plate is a precision-engineered throttle body spacer designed to seamlessly integrate water-methanol or nitrous oxide injection systems into select Chrysler and Dodge vehicles equipped with 5.7L, 6.1L, and 6.4L HEMI engines. This injection plate installs directly between the throttle body and intake manifold, providing a clean, factory-like appearance while optimizing nozzle placement for enhanced combustion cooling and power delivery.

Ideal for performance enthusiasts and tuners, this injection plate simplifies the installation of water-methanol or nitrous systems without requiring custom fabrication or modifications. It improves combustion efficiency, reduces detonation risk, and supports increased horsepower potential by delivering precise injection directly into the intake tract.

Key Features

Designed for durability and ease of installation, the Snow Performance Injection Plate offers a range of features that enhance both functionality and reliability:

• Direct-fit throttle body spacer engineered for perfect integration with factory intake systems
• Two 1/8" NPT ports for flexible mounting of water-methanol or nitrous oxide nozzles
• Includes an O-ring gasket to ensure a secure, leak-free seal between throttle body and intake manifold
• Compatible with 5.7L, 6.1L, and 6.4L HEMI engines found in Chrysler 300, Dodge Challenger, Charger, and Magnum models
• Prevents vacuum siphoning when paired with the recommended solenoid upgrade (part #40060)
• Corrosion-resistant hardware included for long-lasting durability under hood
• Maintains factory throttle body alignment and airflow characteristics for consistent engine performance
• Optimizes nozzle placement to maximize the effectiveness of water-methanol or nitrous injection systems

Construction & Design

Manufactured from high-quality materials, the Snow Performance Injection Plate is CNC-machined to exacting specifications to ensure precise fitment and alignment between the throttle body and intake manifold. The included O-ring gasket provides a tight seal, preventing air leaks that could compromise engine efficiency and performance.

All mounting hardware is corrosion-resistant, engineered to withstand the demanding conditions of the engine bay. The injection plate’s design allows for straightforward installation without any modifications, preserving the integrity of the factory intake system and maintaining a clean under-hood appearance.

Installation & Fitment

Installation is simple and requires positioning the injection plate between the throttle body and intake manifold. The kit includes all necessary bolts and washers for a secure, leak-free fit. For optimal performance and to prevent vacuum siphoning, Snow Performance recommends upgrading the solenoid to part #40060 when using this injection plate.

This product fits a wide range of Chrysler and Dodge vehicles equipped with 5.7L, 6.1L, and 6.4L HEMI engines, including:

• Chrysler 300 Base (2013), 300 C (2008–2020), 300 C Luxury (2012–2014), 300 C Platinum (2015–2017), 300 C SRT8 (2008–2010), 300 S (2010, 2012–2020), 300 SRT8 (2012–2014), 300 SRT8 Core (2013)
• Dodge Challenger 392 Hemi Scat Pack Shaker (2016), R/T (2009–2020), R/T 392 (2017–2019), R/T Classic (2012), R/T Plus (2015–2016), R/T Plus Shaker (2016), R/T Scat Pack (2016–2020), R/T Scat Pack Widebody (2019–2020), R/T Shaker (2016), Scat Pack (2015), SRT 392 (2015–2018), SRT8 (2008–2014), T/A (2017–2018), T/A 392 (2017–2018)
• Dodge Charger Daytona (2017–2018), Daytona 392 (2017–2018), Pursuit (2008–2020), R/T (2008–2020), R/T 392 (2017–2018), R/T Road & Track (2015–2016), R/T Scat Pack (2015–2018), Scat Pack (2019–2020), Scat Pack 392 Widebody (2020), SE (2008–2013), SRT 392 (2015–2018), SRT8 (2008–2010, 2012–2014)
• Dodge Magnum R/T (2008)

What's Included

• Injection Plate
• O-Ring Gasket
• Four 1/8" NPT Plugs
• Four Bolts
• Four Washers

Ideal For

This injection plate is perfect for performance enthusiasts and professional tuners who want to integrate water-methanol or nitrous oxide injection systems into their Chrysler or Dodge HEMI-powered vehicles. It is especially suited for those seeking improved combustion cooling, enhanced detonation resistance, and increased power output without the need for complicated modifications or custom fabrication. Whether upgrading a street machine or a track-focused build, this injection plate provides a reliable and efficient solution for boosting engine performance.

Snow Performance specializes in water‑methanol injection systems designed to reduce intake air temps and support higher boost and timing safely. Popular on forced-induction street/strip builds as well as some tow and diesel applications, Snow kits help manage detonation risk and can enable more consistent power when intake temps and load get aggressive.