Borla Cat-Back Exhaust System

2015–2023 Dodge Challenger 5.7L Hemi

Part #: 140627

Overview

The Borla S-Type Cat-Back Exhaust System is engineered specifically for the 2015 through 2023 Dodge Challenger equipped with the 5.7L Hemi engine without MDS (Multi-Displacement System) valves. Designed to enhance both performance and sound, this exhaust system delivers a noticeable increase in horsepower and torque while providing the aggressive, refined exhaust note that Borla is renowned for. Ideal for enthusiasts seeking to unlock their Challenger’s full potential, this system combines precision engineering with durable materials to ensure long-lasting performance and driving enjoyment.

Whether you’re upgrading for spirited street driving or weekend cruising, the Borla S-Type Cat-Back exhaust offers a perfect balance of power gains and a distinctive exhaust tone that commands attention without overwhelming cabin comfort.

Key Features

This Borla exhaust system incorporates advanced technology and premium components to maximize your vehicle’s performance and sound quality:

• Includes a merge X-Pipe to improve exhaust flow and increase horsepower
• Features 4" x 2.5" mirror-polished T-304 stainless steel exhaust tips for a striking appearance
• Utilizes patented straight-through and multi-core technology for optimal exhaust scavenging
• Constructed from premium T-304 stainless steel, superior to common T-400 series materials
• Ultra-smooth mandrel bends maintain consistent exhaust velocity and reduce flow restrictions
• Precision CNC manufacturing ensures an exact fit for hassle-free installation
• Designed specifically for Dodge Challengers without MDS valves to guarantee compatibility
• Backed by Borla’s Million-Mile Warranty, reflecting confidence in durability and quality

Construction & Design

The Borla S-Type Cat-Back Exhaust System is crafted from high-grade T-304 stainless steel, known for its superior corrosion resistance and strength compared to lower-grade alloys. This material choice ensures the system withstands the rigors of daily driving and harsh environmental conditions while maintaining its finish and structural integrity over time.

Mandrel-bent tubing preserves smooth exhaust flow by eliminating kinks and restrictions, which helps maintain consistent backpressure and enhances engine efficiency. The system’s components are precision-cut and welded using computer numerical control (CNC) technology, guaranteeing a perfect fit and seamless integration with your Challenger’s factory exhaust layout.

Performance & Sound

The inclusion of a merge X-Pipe in this system plays a critical role in improving exhaust scavenging, which increases exhaust velocity and reduces backpressure. This results in measurable gains in horsepower and torque, allowing your 5.7L Hemi to breathe more freely and perform more efficiently.

Acoustically, the Borla S-Type delivers a deep, aggressive exhaust note that is unmistakably Borla. It strikes a balance between a powerful growl and refined tone, enhancing the driving experience without excessive drone during cruising. This sound signature is highly regarded among muscle car enthusiasts for its authenticity and presence.

Installation & Fitment

The Borla S-Type Cat-Back Exhaust System is designed for direct bolt-on installation on 2015–2023 Dodge Challenger models equipped with the 5.7L Hemi engine without MDS valves. No cutting or welding is required, making it a straightforward upgrade for experienced DIYers or professional installers. All mounting points align with factory locations to ensure a secure fit and proper clearance.

Because this system is engineered specifically for vehicles without cylinder deactivation valves, it is important to verify your Challenger’s configuration before purchase to ensure compatibility.

What's Included

• Cat-Back exhaust piping with merge X-Pipe
• 4" x 2.5" mirror-polished T-304 stainless steel exhaust tips
• All necessary clamps, hangers, and hardware for installation
• Detailed installation instructions

Ideal For

This Borla S-Type Cat-Back Exhaust System is ideal for Dodge Challenger owners who want to enhance their vehicle’s performance and sound without compromising reliability or fitment. It suits enthusiasts looking for a durable, high-quality exhaust upgrade that delivers a distinctive muscle car tone and measurable power improvements. Perfect for street performance, weekend drives, and car shows, this system elevates the driving experience while maintaining daily drivability.

Borla is an iconic exhaust manufacturer best known for performance exhaust systems engineered to boost flow and deliver signature sound. With product families like ATAK®, S-Type, and Touring, Borla gives enthusiasts a range of sound levels while targeting real performance gains across the RPM band—perfect for builds where throttle response and the right tone matter as much as horsepower.