Ram Cummins 6.7L Down-pipe Back Competition Exhaust (2013-2018)
Type: Exhaust Systems | Fits: Ram Cummins
Unlock max flow and power with a 4” or 5” stainless race exhaust built for your 6.7L Cummins.
The Ram Cummins 6.7L Downpipe-Back Exhaust System is designed to boost performance on 2013–2018 Ram 2500/3500 pickups. Built from durable stainless steel, this system eliminates restrictive emissions components—including the catalytic converter and DPF filter—for maximum flow, cooler temps, and more power. Available in 4” or 5” configurations, including a full turbo-back design, this system is the perfect choice for competitive or off-road builds.
Vehicle Fitment
- ✅ 2013 Ram 2500/3500 6.7L Cummins (Pickup)
- ✅ 2014 Ram 2500/3500 6.7L Cummins (Pickup)
- ✅ 2015 Ram 2500/3500 6.7L Cummins (Pickup)
- ✅ 2016 Ram 2500/3500 6.7L Cummins (Pickup)
- ✅ 2017 Ram 2500/3500 6.7L Cummins (Pickup)
- ✅ 2018 Ram 2500/3500 6.7L Cummins (Pickup)
- ❌ Not compatible with Cab & Chassis models
- ❌ Not compatible with Ram 2500 trucks equipped with Air-Ride suspension
Specifications
| Feature | Details |
|---|---|
| Product Type | Downpipe-Back / Turbo-Back Race Exhaust |
| Tubing Size Options | 4” or 5” |
| Material | Stainless steel, mandrel-bent |
| Configuration | Turbo-back (full system) |
| Muffler Options | Optional 4” or 5” mufflers available |
| Hangers | OE-style hangers for direct-fit installation |
| Bungs | None (bung-free design for max flow) |
| Application | Off-road/competition use only |
| Tuning Requirement | Requires race tuning after installation |
What’s Included
- Stainless steel downpipe-back exhaust system (4” or 5”)
- OE-style hangers pre-installed
- Full set of clamps and hardware
Key Features
- Removes Cat and DPF for superior off-road performance
- High-quality stainless steel construction resists heat and corrosion
- Mandrel-bent tubing for smooth, unrestricted airflow
- OE-style hangers for fast, factory-like installation
- Bung-free design for maximum exhaust flow
- Full turbo-back configuration replaces the system from turbo to tailpipe
- Optional mufflers allow noise control without restricting power
Benefits
- Increased horsepower and torque from reduced backpressure
- Lower EGTs for safer operation under heavy loads or tuning
- More aggressive exhaust tone with straight-pipe design
- Long-lasting durability compared to stock exhaust
- Simple bolt-on installation with included hardware
Important Notes:
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Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
