Stainless Works High-Flow Catted Midpipe Kit

2015–2023 Dodge Challenger / Charger 6.2L Hellcat & 6.4L 392

Part #: HM64CAT

Overview

The Stainless Works High-Flow Catted Midpipe Kit is a precision-engineered exhaust upgrade designed specifically for Dodge Challenger and Charger models from 2015 to 2023 equipped with the 6.2L Hellcat or 6.4L 392 engines. This direct-fit midpipe enhances exhaust flow by replacing the restrictive factory midpipe with a larger 3-inch diameter pipe featuring an integrated high-flow catalytic converter. It delivers improved throttle response, increased horsepower potential, and a more aggressive exhaust tone while maintaining emissions compliance.

Ideal for enthusiasts upgrading their exhaust system, this midpipe complements aftermarket headers and cat-back systems, providing a balanced combination of performance gains and street-legal operation. Its straightforward bolt-on installation requires no cutting or welding, making it accessible for both professional installers and experienced DIYers.

Key Features

Engineered to meet the demands of performance enthusiasts, the Stainless Works High-Flow Catted Midpipe Kit offers the following key features:

• Integrated high-flow catalytic converter designed to optimize exhaust scavenging and reduce backpressure
• 3-inch diameter mandrel-bent tubing for improved exhaust gas flow compared to factory midpipes
• Direct bolt-on fitment for 2015–2023 Dodge Challenger and Charger 6.2L Hellcat and 6.4L 392 engines
• Constructed from premium 304 stainless steel for superior corrosion resistance and long-lasting durability
• Mandrel bends maintain consistent internal diameter to maximize flow and minimize turbulence
• Compatible with aftermarket headers and cat-back exhaust systems for a complete performance setup
• Maintains emissions compliance with integrated catalytic converter for street-legal use
• Includes all necessary mounting hardware and gaskets for hassle-free installation

Construction & Design

Crafted from high-grade 304 stainless steel, this midpipe kit offers exceptional resistance to rust and corrosion, ensuring reliable performance under demanding conditions. The mandrel-bent tubing preserves a smooth, consistent internal diameter throughout all bends, minimizing exhaust flow restrictions and turbulence for maximum efficiency.

The integrated high-flow catalytic converter balances performance improvements with emissions compliance, allowing enthusiasts to upgrade their exhaust system without compromising legal requirements. Precision TIG welding ensures strong, clean welds that reflect Stainless Works’ commitment to quality craftsmanship and durability.

Performance & Sound

By increasing exhaust flow and reducing backpressure, the Stainless Works High-Flow Catted Midpipe Kit enhances throttle response and unlocks additional horsepower potential. The larger 3-inch tubing combined with the high-flow catalytic converter produces a more aggressive and refined exhaust tone, elevating the driving experience while maintaining street legality.

Installation & Fitment

This midpipe kit is designed for a direct bolt-on installation on 2015–2023 Dodge Challenger and Charger models equipped with the 6.2L Hellcat or 6.4L 392 engines. No cutting, welding, or modifications are required, making installation straightforward for both professional shops and knowledgeable enthusiasts. All necessary mounting hardware and gaskets are included to ensure a secure, leak-free fit.

For optimal performance gains and sound quality, it is recommended to pair this midpipe with compatible headers and cat-back exhaust components from Stainless Works or other high-quality aftermarket manufacturers.

What's Included

• 3-inch diameter high-flow catted midpipe
• Integrated high-flow catalytic converter
• Mounting hardware and gaskets
• Installation instructions

Ideal For

This midpipe kit is perfect for Dodge Challenger and Charger owners who want to upgrade their exhaust system for enhanced performance and sound without sacrificing emissions compliance. It suits enthusiasts seeking improved exhaust flow, increased horsepower potential, and a more aggressive exhaust note while maintaining street legality. It also pairs seamlessly with other aftermarket exhaust components for a complete performance exhaust setup.

Stainless Works builds exhaust systems, mufflers, and fabrication components. Designed for enthusiasts who want sound, flow, and fitment, their exhaust solutions balance fitment, tone, and performance-minded flow characteristics. If you’re upgrading for a more engaging sound and a cleaner, higher-quality exhaust setup, Stainless Works is a proven name in the aftermarket.