aFe BladeRunner Exhaust Manifold

Dodge Ram 2500 / Ram 3500 94-98 5.9L Diesel

Part #: 46-40044-1

Overview

The aFe BladeRunner Exhaust Manifold is a premium, direct replacement designed specifically for the 1994 to 1998 Dodge Ram 2500 and Ram 3500 trucks equipped with the 5.9L diesel engine. This manifold addresses the common issue of cracking found in the factory units by offering a more robust and durable solution. Whether your original manifold is damaged or still intact, upgrading to the BladeRunner manifold enhances exhaust flow, reduces exhaust gas temperatures, and improves throttle response for a more efficient and reliable diesel engine operation.

Built with diesel enthusiasts in mind, the BladeRunner manifold extends the lifespan of your exhaust system while contributing to faster turbo spool-up and improved overall engine responsiveness. It is an essential upgrade for anyone looking to maintain or boost the performance and durability of their Dodge diesel truck.

Key Features

The BladeRunner Exhaust Manifold incorporates advanced design and engineering features that set it apart from the stock manifold:

• Outflows the factory manifold by up to 50%, significantly improving exhaust gas evacuation
• Ported flanges ensure an excellent seal and a clean, professional appearance
• Thick wall construction (0.25" vs. stock 0.15") increases strength and eliminates warping or cracking
• Merged runner design reduces exhaust backpressure for smoother flow and enhanced efficiency
• Dual 1/8 inch NPT ports for exhaust gas temperature (EGT) sensors allow precise monitoring on each bank
• Includes six port gaskets and all necessary mounting hardware for a hassle-free installation
• Reinforcing rib along the flange adds extra durability and structural integrity

Construction & Design

The BladeRunner manifold is crafted from high-quality 304 stainless steel, selected for its exceptional strength and resistance to heat-related cracking. Its walls are significantly thicker than the stock manifold, providing enhanced durability under the extreme thermal conditions typical of diesel exhaust systems. The ported flanges and merged runner design optimize exhaust flow by reducing turbulence and backpressure, maximizing engine efficiency.

Attention to detail is evident in the precision-machined ports and the integrated reinforcing rib, which together ensure a long-lasting, reliable fitment that withstands the rigors of daily driving and heavy-duty use.

Performance & Sound

The improved exhaust flow from the BladeRunner manifold results in faster turbo spool-up, enhancing throttle response and overall engine performance. By lowering exhaust gas temperatures, it helps maintain optimal engine operating conditions and reduces stress on turbo components. While primarily focused on performance and durability, the manifold also contributes to a cleaner, more efficient exhaust pulse, which can positively influence the sound characteristics of your Dodge diesel.

Installation & Fitment

The BladeRunner Exhaust Manifold is designed as a direct replacement for the factory manifold on 1994–1998 Dodge Ram 2500 and Ram 3500 trucks equipped with the 5.9L diesel engine. Installation is straightforward and requires no modifications, making it accessible for professional mechanics and experienced DIYers alike. The manifold comes complete with all necessary hardware and detailed instructions to ensure a smooth, hassle-free upgrade.

What's Included

• BladeRunner Exhaust Manifold (304 stainless steel)
• Six port gaskets
• Complete mounting hardware
• Detailed installation instructions

Ideal For

This exhaust manifold is ideal for Dodge Ram 2500 and Ram 3500 owners who want to replace a cracked or damaged factory manifold or improve their truck’s exhaust flow and performance. It is perfect for diesel enthusiasts seeking enhanced turbo response, reduced exhaust gas temperatures, and long-term durability in demanding driving conditions.

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.