aFe Twisted Steel Shorty Headers

2019–2021 Ram 2500 / 3500 6.4L 392

Part #: 48-32029

Overview

The aFe Twisted Steel Shorty Headers are engineered specifically for the 2019 to 2021 Ram 2500 and 3500 models equipped with the 6.4L 392 HEMI engine. Designed to enhance exhaust flow and boost engine performance, these headers provide a reliable upgrade for truck enthusiasts seeking increased horsepower and torque without compromising durability or fitment. Ideal for those who want to maximize their truck’s power output while maintaining a factory-like installation experience.

These shorty headers replace the restrictive factory manifolds, improving exhaust scavenging and reducing backpressure. The result is a noticeable gain in throttle response and overall engine efficiency, making them a perfect choice for daily drivers and performance-minded owners alike.

Key Features

Crafted with precision and performance in mind, the aFe Twisted Steel Shorty Headers offer the following standout features:

• Up to +11 horsepower and +19 lb-ft of torque gains as verified on aFe’s in-house dyno
• Constructed from mandrel-bent 304 stainless steel tubing ranging from 1-7/8 inches to 2-1/4 inches for optimized flow
• Heavy-duty laser-cut, machined mild steel flanges ensure a durable, leak-free seal
• 100% MIG-welded joints for superior strength and long-lasting durability
• Designed to work seamlessly with the factory exhaust system—no cutting or modifications required
• Computer-aided design (CAD) technology guarantees precise fitment and installation
• Engineered specifically for Ram 2500 and 3500 6.4L 392 models from 2019 to 2021

Construction & Design

The headers are built from premium 304 stainless steel tubing, known for its excellent corrosion resistance and high-temperature durability. The tubing is mandrel-bent to maintain consistent diameter throughout bends, ensuring smooth exhaust flow and minimizing turbulence. The transition from 1-7/8 inches to 2-1/4 inches tubing is optimized for maximum scavenging effect and improved engine breathing.

Flanges are laser-cut and machined from mild steel to provide a perfect mating surface with the cylinder heads, preventing exhaust leaks and ensuring a secure fit. The entire assembly is 100% MIG-welded, a method that delivers strong, clean welds capable of withstanding the rigors of heavy-duty use and high exhaust temperatures.

Performance & Sound

By replacing the restrictive factory manifolds, the aFe Twisted Steel Shorty Headers unlock up to 11 additional horsepower and 19 lb-ft of torque, enhancing acceleration and overall engine responsiveness. The improved exhaust flow also contributes to a more aggressive exhaust note, giving your Ram a deeper and more commanding sound without excessive drone.

Installation & Fitment

These headers are designed for a direct bolt-on installation using factory mounting points and flanges, requiring no cutting, welding, or modifications to the existing exhaust system. This ensures a hassle-free upgrade that maintains factory reliability and ease of service. Please note, these headers are not compatible with Cab and Chassis models.

What's Included

• aFe Twisted Steel Shorty Headers assembly
• Heavy-duty laser-cut mild steel flanges
• Installation hardware
• Detailed installation instructions

Ideal For

These headers are perfect for Ram 2500 and 3500 owners with the 6.4L 392 engine who want to improve power and torque for towing, hauling, or spirited driving. They suit enthusiasts looking for a durable, high-quality exhaust upgrade that enhances performance without complicated installation or modifications.

Emissions Note

This product is not currently CARB exempt and is not legal for sale or use in California or on vehicles registered with the California Department of Motor Vehicles.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.