4 inch Cat Back T409 Single Side Dual Exhaust System

Features:

• Fits 2014–2026 RAM 2500/3500 with 6.4L HEMI gas engine

• 4" mandrel-bent T409 stainless steel tubing for long-lasting durability

• Dual side exit with twin 5" polished T304 stainless steel tips

• Dyno-proven to increase exhaust flow and reduce backpressure

• Aggressive "Race Profile" exhaust tone under throttle

• Bolt-on, no-weld installation using factory hangers

• Backed by MBRP's Lifetime Warranty on T409 construction

• Designed and tuned for optimal sound, style, and performance

Aggressive Performance with Dual Style

The MBRP S5150409 XP Series Exhaust System is the perfect upgrade for RAM 2500/3500 owners with the 6.4L HEMI who demand performance, sound, and longevity. Built from 16-gauge T409 stainless steel, this 4-inch cat-back system offers superior durability in tough climates, resisting salt, grime, and road debris with confidence.

Dyno-Tested, Road-Proven

Engineered on MBRP’s in-house Mustang dyno and refined on-road, this system is proven to optimize exhaust flow and minimize temperatures. The result? Better fuel efficiency, more responsive power, and performance gains that complement your other mods like tuners and cold air intakes.

Bolt-On Installation Made Simple

This kit features a direct-fit, no-weld design that installs in under two hours using basic hand tools. With all hardware and OEM-style hangers included, you’ll enjoy a hassle-free installation and an immediate upgrade in both sound and aesthetics.

Built to Look and Sound the Part

The dual 5-inch polished tips and bold side exit configuration deliver a custom appearance, while MBRP’s unmistakable tuning delivers the throaty, race-inspired growl that turns heads without overwhelming cabin noise. It’s form and function in one reliable package.

Fitment: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 RAM 2500/3500 6.4L HEMI (Gas)
Warranty: Lifetime warranty on T409 stainless components
Fitment Notes: Not compatible with 6.7L Cummins diesel engines or Cab & Chassis configurations