Your cart
Your cart is empty
Continue shopping
2013-2018 Cummins 4" Downpipe Back Exhaust System w/Muffler (DDC-4D13M)
Sale price
$1,625.00
Regular price
Regular price
$1,625.00
Unit price
Tax included.
Shipping calculated at checkout.
Off-road and competition use only
Not for use on road-registered vehicles. Removing or modifying emissions equipment on a registered vehicle is illegal in Australia.
2013-2018 Cummins 4" Downpipe Back Exhaust System w/Muffler (DDC-4D13M)
Sale price
$1,625.00
Regular price
Regular price
$1,625.00
Unit price
Dirty Diesel Customs
Art: DDC-4D13M
Vehicle Fitment
Set your vehicle
Fits
- Ram 25002013–2018
- Ram 35002013–2018
Before you order
Not sure it fits? Ask us.
Send your year, model and engine. We'll confirm the part number before you buy.
Pay later
Afterpay & Zip
Split it into instalments
Delivery
Australia-wide
Usually 3–7 business days
Genuine
US & Canadian brands
Not copies or knock-offs
Support
Real people, no bots
20+ years fitting this gear
Aussie owned. 25 years in the auto trade.
About us
Normally ships within 3–8 business days
Description
Fits
| Year | Make | Model |
| 2013-2018 | Dodge |
Ram 2500/3500 w/6.7L Cummins |
This high-flow 4" exhaust kit features 16-gauge mandrel-bent T409 stainless steel and a high-flow muffler for optimal diesel performance. Complete with clamps, pre-welded contour hangers, and reinforced flanges, installation is fast and hassle-free. Designed for 6.7L engines, it boosts torque, throttle response, fuel efficiency, and exhaust flow while lowering EGTs for reliable power and sound.
Part Number: DDC-4D13M
Features
- 4" Downpipe-Back System
- T409 Stainless Steel Construction
- Factory-Style Flanged Connection
- Includes High-Flow Muffler
- Direct-Fit, Easy Installation
- Pre-Bent, Pre-Welded Hangers
- Precision Machined Turbo Flange
- No Exhaust Tip Included
- Reduces EGTs for Performance
Notes
- This system will NOT fit on a 2500 Series with air-ride!
- Requires (3) M10x1.5 40mm long bolts and (3) M10x1.5 flanged nuts. THESE ARE NOT INCLUDED.
- Ram 2500 uses coil springs, Ram 3500 uses leaf springs.