MBRP Down-Pipe T409

2003–2004 Dodge Ram 2500 / Ram 3500

DS9405

Overview:

The MBRP 4 Down-Pipe T409 is engineered for Dodge Ram 2500 and Ram 3500 trucks from 2003 to 2004, designed to enhance exhaust flow and maximize your truck’s performance potential. This high-quality down-pipe serves as the critical link between the turbocharger and the rest of the exhaust system, providing a more efficient path for exhaust gases to exit. Ideal for enthusiasts who demand more power and improved throttle response, this component helps push your truck beyond factory limitations.

Whether you’re upgrading for towing, hauling, or performance driving, the MBRP down-pipe offers a reliable solution to increase horsepower and torque while lowering exhaust gas temperatures (EGTs), contributing to better engine longevity and efficiency.

Key Features:

Designed with precision and durability in mind, the MBRP 4 Down-Pipe T409 delivers a range of benefits that enhance your truck’s performance and reliability:

• Constructed from premium T409 stainless steel for superior corrosion resistance and strength
• 4-inch diameter pipe to optimize exhaust flow and reduce backpressure
• Includes a 4-inch dual-wall tip for a clean, aggressive exhaust exit
• Armor Plus Turbocharger Down Pipe design to withstand high temperatures and harsh conditions
• Jig manufactured to ensure precise fitment and ease of installation
• Effectively lowers exhaust gas temperatures (EGTs) for improved engine health
• Increases horsepower and torque by improving turbo efficiency
• Direct bolt-on fitment for 2003–2004 Dodge Ram 2500 and 3500 models

Construction & Design:

The down-pipe is expertly crafted from T409 stainless steel, a material known for its excellent resistance to rust and thermal fatigue, making it ideal for high-heat turbocharged applications. The 4-inch diameter tubing is designed to maximize exhaust flow without restriction, while the dual-wall tip adds durability and a refined appearance. Each pipe assembly is jig manufactured to guarantee consistent quality and precise fitment, ensuring a seamless integration with your truck’s existing exhaust system.

Performance & Sound

By improving exhaust flow from the turbocharger, this down-pipe reduces backpressure and lowers exhaust gas temperatures, which can translate into noticeable gains in horsepower and torque. The enhanced flow also contributes to a more responsive turbo spool and improved throttle response. While primarily focused on performance, the MBRP down-pipe also delivers a deeper, more aggressive exhaust note that complements the power gains without being overly loud or intrusive.

Installation & Fitment:

The MBRP 4 Down-Pipe T409 is designed for direct bolt-on installation with no modifications required for 2003–2004 Dodge Ram 2500 and 3500 models, including Laramie, SLT, and ST trims. Its jig-manufactured construction ensures precise alignment with factory mounting points, making installation straightforward for experienced mechanics or knowledgeable enthusiasts. Basic hand tools are typically sufficient, though professional installation is recommended to ensure optimal performance and fit.

What's Included:

• One 4-inch T409 stainless steel down-pipe assembly
• 4-inch dual-wall exhaust tip
• All necessary mounting hardware and gaskets

Ideal For:

This down-pipe is perfect for Dodge Ram 2500 and 3500 owners looking to upgrade their exhaust system for improved performance, whether for towing, hauling, or daily driving. It suits enthusiasts who want to reduce exhaust gas temperatures and increase power output without compromising reliability or fitment. It is also an excellent choice for those building a custom turbo setup or enhancing their truck’s overall exhaust efficiency.

MBRP builds performance exhaust systems engineered for bold sound, improved flow, and durable fitment across gas and diesel trucks, as well as select cars. From workhorse tow rigs to weekend builds, MBRP is known for offering multiple series and configurations so owners can choose the tone and construction that match how hard the vehicle gets driven.