aFe BladeRunner Exhaust Manifold

2009–2018 Ram 1500 5.7L HEMI V8

Part #: 46-40164

Overview

The aFe BladeRunner Ported Ductile Iron Exhaust Manifold is a premium replacement designed specifically for the 2009–2018 Ram 1500 equipped with the 5.7L V8 HEMI engine. Engineered to improve exhaust flow and durability, this manifold addresses common OEM issues such as cracking and flow restrictions, providing a reliable upgrade for enthusiasts seeking enhanced performance and longevity.

With a direct bolt-on fit and included mounting hardware, the BladeRunner manifold offers a straightforward installation without the need for modifications. It is ideal for Ram 1500 owners who want to optimize throttle response and overall engine efficiency while maintaining factory gasket compatibility and fitment.

Key Features

Designed with precision and durability in mind, the aFe BladeRunner manifold delivers several important benefits:

• Ported inlet and outlet ports machined to match factory gasket openings for maximum exhaust flow and optimal sealing.
• Improves exhaust flow by approximately 15% over factory manifolds, enhancing throttle response and engine efficiency.
• Walls are 25% thicker than OEM manifolds, increasing rigidity and significantly reducing the risk of cracks.
• Constructed from durable cast ductile iron for superior strength and heat resistance.
• Direct bolt-on installation to the factory Y-pipe with no modifications required.
• Includes all necessary manifold mounting hardware for a complete installation.
• Specifically engineered to fit the Ram 1500 5.7L HEMI V8, ensuring perfect fit and function.

Construction & Design

The BladeRunner manifold is crafted from premium cast ductile iron, a material known for its enhanced strength and thermal durability compared to standard cast iron. This robust construction improves resistance to cracking under extreme heat cycles and increases structural rigidity.

Precision-machined ports align perfectly with factory gaskets, ensuring a seamless seal and maximizing exhaust gas flow. The manifold’s thicker walls address a common failure point in stock manifolds, extending the service life and reliability of the component under demanding conditions.

Performance & Sound

By increasing exhaust flow by approximately 15% over the factory manifolds, the aFe BladeRunner manifold reduces backpressure, which can improve throttle response and overall engine efficiency. While primarily focused on performance gains, this upgrade also contributes to a cleaner, more aggressive exhaust note characteristic of a well-tuned V8 HEMI engine.

Installation & Fitment

This manifold is designed for a direct bolt-on installation to the factory Y-pipe on 2009–2018 Ram 1500 models equipped with the 5.7L V8 HEMI engine. No modifications or additional fabrication are necessary, making it an accessible upgrade for both professional installers and experienced enthusiasts.

The included mounting hardware simplifies the installation process, reducing downtime and ensuring a secure, factory-quality fit.

What's Included

• aFe BladeRunner Ported Ductile Iron Exhaust Manifold
• Manifold mounting hardware
• Installation instructions

Ideal For

This exhaust manifold is perfect for Ram 1500 owners who want to enhance their truck’s performance and reliability without extensive modifications. It suits daily drivers, weekend warriors, and performance enthusiasts who demand a durable, high-flow exhaust solution that improves throttle response and engine efficiency while maintaining OEM fitment and ease of installation.

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.