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5 Best Exhaust Pipes for Cummins Diesel (Tested & Ranked)
May 19, 2025

5 Best Exhaust Pipes for Cummins Diesel (Tested & Ranked)

If you own a Cumminspowered Dodge Ram, you already know that a highquality exhaust system is key to unlocking better performance, fuel efficiency, and engine longevity. Over time, restrictive factory exhaust components—like the DPF (Diesel Particulate Filter)—can clog up, reducing horsepower and torque while increasing backpressure.
For Cummins owners looking to maximize power, improve throttle response, and eliminate DPFrelated headaches, an aftermarket exhaust pipe is one of the best upgrades you can make. In this guide, we’ll break down five of the most costeffective, highperformance exhaust pipes for Cummins diesel engines, along with some expert tips to help you choose the right one.

Why Upgrade Your Cummins Exhaust System?

Before diving into our top picks, let’s quickly cover why an aftermarket exhaust pipe is worth the investment:
Increased Horsepower & Torque – Less restriction means better airflow, leading to improved turbo spool and throttle response.
Better Fuel Efficiency – Reduced backpressure helps your engine breathe easier, often leading to 12 MPG gains.
DPF Delete Benefits – Removing a clogged DPF eliminates regeneration cycles, preventing power loss and costly repairs.
Durability & Sound – Highquality stainless steel pipes resist corrosion, while a deeper exhaust note enhances the Cummins’ signature growl.

Now, let’s get into the best exhaust upgrades for your Cummins diesel truck!

1. 3" Ecodiesel DPF Delete Pipe Exhaust for 2014-2018 3.0L Dodge Ram 1500

If you’re running a 3.0L EcoDiesel Ram 1500, this 3inch DPF delete pipe is a gamechanger. Designed for 2014-2018 models, it replaces the restrictive factory DPF, allowing smoother exhaust flow and reduced EGTs (Exhaust Gas Temperatures).

Why Buy This Pipe?

  1. Mandrelbent construction ensures optimal airflow.
  2. stainless steel resists rust and corrosion.
  3. Easy bolton installation—no welding required.
  4. Restores lost power caused by a clogged DPF.
Perfect for: EcoDiesel owners who want a simple, effective DPF delete solution without breaking the bank.

Shop Now – 3" EcoDiesel DPF Delete Pipe

2. 2013-2018 6.7L Ram Cummins Turbo 4" Exhaust Tube Pipe

For 6.7L Cummins owners (2013-2018 Ram 2500/3500), this 4inch turbo exhaust tube is a musthave upgrade. It replaces the stock downpipe, reducing turbo lag and improving exhaust scavenging.

Key Features:

  1. 4inch diameter maximizes flow for better turbo efficiency.
  2. Heavyduty aluminized steel for longlasting durability.
  3. Direct bolton fitment—no modifications needed.
  4. Aggressive turbo whistle under acceleration.
Best For: Truck owners looking for a straightforward performance boost without a full exhaust system overhaul.

Get Yours – 4" Turbo Exhaust Tube

3. 2013-2018 6.7L Ram Cummins Diesel 5" Turbo Back DPF Delete Pipe

Want maximum flow and a deep diesel rumble? This 5inch turboback DPF delete pipe is one of our bestselling exhausts for 6.7L Cummins Rams (2013-2018).

Why It’s a Fan Favorite:

  1. Full 5inch turboback design eliminates both the DPF and factory restrictions.
  2. Mandrelbent tubing minimizes turbulence for optimal power gains.
  3. Deep, throaty exhaust tone—no annoying drone at highway speeds.
  4. Works with or without a tuner (though tuning unlocks full potential).
Ideal For: Performancedriven Cummins owners who want the biggest airflow upgrade possible.

Upgrade to a 5" TurboBack System

4. 5" DPF Delete Downpipe Back Exhaust for 2019-2022 6.7L Ram Cummins

For newer 6.7L Cummins trucks (2019-2022), this 5inch downpipeback exhaust is the ultimate DPF delete solution. It’s built to handle high horsepower while keeping EGTs in check.

Standout Benefits:

  1. Full 5inch stainless steel construction—built to last.
  2. Retains factory mounting points for hasslefree installation.
  3. Noticeable power increase, especially when paired with a performance tuner.
  4. Clean, sootfree exhaust after DPF removal.
Great For: Latemodel Cummins owners who want a complete DPFfree exhaust system.

Order Your 5" DownpipeBack Exhaust

5. 2013-2019 6.7 Dodge Ram Cummins 4" Cab & Chassis DPF Delete Pipe Exhaust

If you drive a Cab & Chassis Ram with a 6.7L Cummins, this 4inch DPF delete pipe is tailored for your rig. It’s shorter than standard exhausts, ensuring perfect fitment.

Why Choose This One?

  1. Cab & Chassisspecific design—no clearance issues.
  2. 4inch diameter balances flow and compact fitment.
  3. Improves throttle response and reduces turbo lag.
  4. Affordable way to ditch the DPF without a full system.
Best For: Work trucks and fleet vehicles that need reliability and performance.

Grab Your Cab & Chassis DPF Delete Pipe

Final Tips for Cummins Owners

Before purchasing, keep these pro tips in mind:
Check local emissions laws—DPF deletes are for offroad use only.
Pair with a tuner for maximum gains (most DPF deletes require tuning to prevent CELs).
Consider a full exhaust system if you’re chasing big horsepower.
All our exhaust pipes are made from premium materials, come with easy installation guides, and are backed by a satisfaction guarantee.

Ready to unleash your Cummins’ true potential? Browse our full selection of highperformance diesel exhaust systems and order yours today!

Shop All Cummins Exhaust Upgrades Now

🔑 Key Takeaways

  • 4" exhaust provides optimal balance of flow and sound for stock to moderate tunes
  • 5" exhaust required for 600+ HP builds for maximum EGT control
  • 304 stainless steel offers best corrosion resistance for long life
  • Aluminized steel provides budget-friendly option with 3-5 year lifespan
  • Proper mounting and hangers prevent rattling and premature wear
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