aFe BladeRunner Ported Ductile Iron Exhaust Manifold

2011–2018 Ram 1500 V8 5.7L HEMI

46-40164

Overview:

The aFe BladeRunner Ported Ductile Iron Exhaust Manifold is a high-quality replacement designed specifically for the 2011–2018 Ram 1500 equipped with the 5.7L V8 HEMI engine. Engineered to improve exhaust flow and durability, this manifold is ideal for enthusiasts seeking enhanced performance and reliability over the factory manifolds. It offers a direct bolt-on fit, making it a practical upgrade for those looking to optimize throttle response and overall engine efficiency without extensive modifications.

Built to address common issues found in OEM manifolds, such as cracking and flow restrictions, the BladeRunner manifold provides a robust solution that maintains factory gasket compatibility while delivering superior exhaust outflow.

Key Features:

Designed with precision and durability in mind, the aFe BladeRunner manifold offers several key benefits:

• Ported inlet and outlet ports machined to match factory gasket openings for maximum exhaust flow and optimal sealing.
• Outflows factory exhaust manifolds by approximately 15%, enhancing performance and throttle response.
• 25% thicker walls compared to OEM manifolds, increasing rigidity and significantly reducing the risk of cracks.
• Constructed from durable cast ductile iron for long-lasting strength and heat resistance.
• Direct bolt-on installation to the factory Y-pipe, ensuring a hassle-free upgrade.
• Includes manifold mounting hardware for a complete installation package.
• Specifically engineered for 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 superior strength and thermal durability compared to standard cast iron. This construction not only enhances the manifold’s resistance to cracking under extreme heat cycles but also improves its structural rigidity. The ports are precision-machined to align perfectly with factory gaskets, ensuring a seamless seal and maximizing exhaust gas flow. The thicker walls provide added durability, addressing a common failure point in stock manifolds and extending the service life of the component.

Performance & Sound

By increasing exhaust flow by 15% over the factory manifolds, the aFe BladeRunner manifold helps reduce backpressure, which can improve throttle response and overall engine efficiency. While primarily focused on performance gains, this upgrade can also contribute 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 2011–2018 Ram 1500 models with the 5.7L V8 HEMI engine. No modifications or additional fabrication are required, 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 fit.

What's Included:

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

Ideal For:

This exhaust manifold is ideal 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.