5-Inch Single-Side DPF-Back Exhaust for 2013–2025 Ram 6.7L Cummins

Description

Fitment

• 2013-2018 Dodge Ram 2500 3500 6.7L Diesel (NOT compatible with Crew Cab Short Bed models)
• 2019+ Dodge Ram 2500 3500 6.7L Diesel (All cab & bed configurations)

Description

Want a deep, aggressive exhaust tone for your 2013-2025 6.7L Cummins while keeping your factory DPF? Upgrade to the SPETUNER DPF-back exhaust system. Designed exclusively for truck owners who want to keep their OEM emissions equipment while upgrading sound, flow, and exterior styling, this bolt-on kit delivers a bold performance exhaust note without DPF deletion.

Choose between economical 409 stainless steel or premium 304 stainless steel for long-lasting durability. Finished with a black-coated exhaust tip for a sharp custom look and a large 4-inch diameter for improved flow and sound, this system gives you the powerful, throaty rumble you want—100% DPF-friendly and street-safe.

Key Features

• Improved Exhaust Flow – Reduces backpressure for better throttle response, low-end torque, and overall efficiency.
• Heavy-Duty Stainless Steel – Offered in T409 (great value) or T304 (best corrosion resistance, perfect for salt & coastal areas).
• Simple Bolt-On Installation – Uses factory-style hangers for a precise, secure fit with basic hand tools.
• Aggressive Yet Controlled Sound – Delivers a deep, muscular tone without harsh interior drone.
• OEM+ Precision Fit – Engineered to match factory mounting points while retaining your stock DPF.
• 100% DPF Compatible – Works seamlessly with your factory emissions system.
• Black Coated Exhaust Tip – Adds a rugged, custom appearance to the rear of your truck.

Material Comparison (T304 vs T409 Stainless Steel)

• Corrosion Resistance
  • T304: 18% chromium + 8% nickel → Superior corrosion protection
  • T409: 11% chromium + trace titanium → Good corrosion resistance
• High Temperature Resistance
  • T304: Withstands heat up to 870°C
  • T409: Withstands heat up to 800°C
• Oxidation & Salt Resistance
  • T304: Excellent performance in high-heat, high-salt, and coastal environments
  • T409: Good performance for daily driving
• Service Life
  • T304: 10–15+ years
  • T409: 7–12 years

Package Includes

• 4″ Extension Pipe × 1
• Tail Pipe × 1
• 4″ Clamp × 1
• 5″ Clamp × 1
• Exhaust Tip × 1

Installation

5” DPF Back Exhaust for 2013-2025 Dodge Ram 2500 3500 6.7L Cummins Installation

FAQ

Q: Does this DPF-back exhaust delete the factory DPF?
A: No. This is a true DPF-back system that only replaces exhaust components AFTER the DPF. It does not modify or remove any emissions equipment.

Q: Will this improve performance or MPG?
A: With the factory DPF installed, performance gains are moderate. However, the 4-inch smooth-flow design reduces backpressure, improving throttle response, low-end torque, and exhaust efficiency.

Q: Is welding required? Do I need professional installation?
A: No welding is needed. This is a bolt-on system; minor cutting of the stock exhaust may be required. It is DIY-friendly with basic tools, but professional installation ensures the cleanest fit.

Q: Will this make my truck significantly louder?
A: You will enjoy a deeper, more aggressive tone than stock, but the DPF and catalytic converters keep volume street-friendly and controlled with no excessive drone.

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