4'' Single Side Exit DPF Back Exhaust for 2011-2016 6.7L Powerstroke Ford F250 F350 F450

Fitment

• 2011-2016 Ford F-250 / F-350 / F-450 Super Duty 6.7L Powerstroke
• Does NOT fit Cab & Chassis configurations
• Note: For maximum performance, pair with a DPF/CAT delete pipe (off-road use only).

Description

Want deep, aggressive exhaust tone for your 2011–2016 6.7L Powerstroke while keeping your factory DPF? Upgrade to the SPETUNER DPF-back exhaust system. Built specifically for owners who want to retain their OEM diesel particulate filter and improve the sound, flow, and appearance of their truck, this bolt-on upgrade delivers a bold, performance-focused exhaust note without emissions deletion.

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

Key Features

• Improved Exhaust Flow – Reduces backpressure to support better throttle response, torque, and efficiency.
• Heavy-Duty Stainless Steel – Available in T409 (great value) or T304 (superior rust resistance, ideal 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 annoying cabin drone.
• OEM+ Perfect Fit – Engineered to match factory mounting points and retain your stock DPF.
• 100% DPF Compatible – Designed to work with your factory emissions system.
• Black Coated Exhaust Tip – Adds a rugged, custom look 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 regular daily driving
• Service Life
  • T304: Long service life of 10–15+ years
  • T409: Reliable lifespan of 7–12 years

Package Include

• 4" Extension Pipe × 1
• Over-Axle Pipe × 1
• Tail Pipe × 1
• Exhaust Hanger × 1
• Black Exhaust Tip × 1
• 4" Wide Band Clamps × 2
• Gasket × 1
• 7/16" Hex Bolts × 3
• 7/16" Hex Nuts × 3

Installation

4'' DPF Back Exhaust for 2011-2016 6.7L Powerstroke

Q：Does this DPF-back exhaust remove or delete the factory DPF?

A：No. This is a true DPF-back system, meaning it only replaces the exhaust components after the DPF. It does not modify or remove emissions equipment.

Q：Will this improve performance or MPG?

A：While gains are moderate with the factory DPF still installed, the 4-inch smooth-flow design reduces backpressure, which can improve throttle response, low-end torque, and overall exhaust efficiency.

Q：Is welding required? Do I need professional installation?

A：No welding is needed. This is a bolt-on system, though minor cutting of the factory exhaust may be required. It is DIY-friendly with common tools, but professional installation ensures the cleanest fit.

Q：Will this make my truck significantly louder?

A：You will notice a deeper, more aggressive tone than stock, but the DPF and catalytic converters keep volume controlled and street-friendly. No excessive noise or drone.