| Years | 2011–2012 |
|---|---|
| Make | Dodge Ram |
| Engine | Cummins |
| Displacement | 6.7L |
| Body | Cab and Chassis |

Overview
The Ram Cummins 6.7L Cab & Chassis 4-Inch SCR/Urea Race Pipe is designed for 2011-2012 RAM 6.7L Cummins Cab & Chassis trucks with a cab-to-axle measurement under 70 inches. This pipe serves as the second section of the exhaust race pipe assembly, following the CAT/DPF race section to complete the off-road exhaust configuration.
Constructed from exhaust-grade steel with OE-style hangers, this pipe is designed for exhaust flow and durability in off-road and competition applications.
Vehicle Fitment
- Make: RAM
- Engine: 6.7L Cummins Diesel
- Model Years: 2011-2012
- Vehicle Type: Cab & Chassis only
- Cab-to-Axle Measurement: Under 70 inches, measured from the back of the cab to the center of the rear wheel
- Not Compatible With: Pickup models
Key Features
- 4-Inch Diameter: Designed for the specified Cab & Chassis exhaust configuration.
- Material Options: Available in 304 or 409 stainless steel.
- OE-Style Hangers: Provide secure mounting with factory-style alignment.
- No Bungs: Features a clean design without sensor bungs.
- Cab & Chassis-Specific Length: Designed for trucks with a cab-to-axle measurement under 70 inches.
Technical Specifications
| Specification | Details |
|---|---|
| Diameter | 4 inches |
| Material Options | 304 stainless steel or 409 stainless steel |
| Layout | SCR/Urea race section |
| Hangers | OE-style |
| Fitment | 2011-2012 RAM 6.7L Cummins Cab & Chassis, under 70-inch cab-to-axle measurement |
| Intended Use | Off-road and competition use only |
Material Options
- 304 Stainless Steel: Offers superior resistance to rust and corrosion, a cleaner finish, and a longer service life in harsh environments.
- 409 Stainless Steel: A more affordable option that provides durability and performance for buyers seeking a cost-conscious exhaust upgrade.
Related Products
- RAM Cummins 6.7L Cab & Chassis DPF Delete Pipe — the first section required to pair with this SCR/Urea race pipe.
- RAM Cummins 6.7L Cab & Chassis 4-Inch SCR/Urea Race Pipe Over 70 Inches (2011-2012) — for trucks with a cab-to-axle measurement over 70 inches.
- RAM Cummins 6.7L CAT & DPF Delete Pipe (2007.5-2012) — for pickup models.
Installation Notes
- Installation Difficulty: Moderate; exhaust tools are recommended.
- Must be paired with the compatible CAT/DPF race section.
- Measure from the back of the cab to the center of the rear wheel to confirm the correct pipe length.
- Race tuning is required after installation.
Frequently Asked Questions
Is this the correct pipe length for my truck?
Measure from the back of the cab to the center of the rear wheel. If the measurement is under 70 inches, this is the correct pipe. For measurements over 70 inches, choose the over-70-inch version.
Do I need other parts?
Yes. This is the second section of the exhaust race pipe assembly and must be paired with the compatible RAM Cummins 6.7L Cab & Chassis DPF Delete Pipe.
Important Notes:
- For off-road and competition use only.
- Fits 2011-2012 RAM 6.7L Cummins Cab & Chassis trucks only.
- Does not fit pickup models.
- Designed for cab-to-axle measurements under 70 inches.
- Race tuning is required after installation.
Shipping
Free shipping on tuners. We aim to dispatch in-stock orders within 2 business days. Most North American orders arrive within 2–7 business days after dispatch via expedited ground. International orders typically take 5–14 business days, depending on destination and customs.
Transit time starts when your order ships, not when you place it. Weekend orders are processed the next business day. Orders shipping outside Canada may be subject to import duties and taxes, which are the customer’s responsibility on delivery. See our shipping policy for full details.
Items Eligible for Return
These items can be returned within 30 days of the purchase date if they are unopened, unused, and in their original packaging:
- Tuning devices: an unopened, unused Mini Maxx V1/V2 or a blank EFI Live device.
- Cables and device accessories: an unopened, unused switch, bypass cable, universal pyrometer, or docking station.
Final Sale
The following items are final sale and cannot be returned:
- Custom tuning: additional tune files purchased separately, and custom tuning purchased with a device.
- Exhausts and race pipes: including downpipes purchased separately from an exhaust or race pipe.
- EGR kits.
Manufacturer Warranty
Every item we sell includes a 90-day manufacturer warranty. An item returned for a manufacturer defect can be refunded in full, exchanged, or replaced with a similar item of equal or lesser value.
Eligible items returned for any other reason follow the same options — a full refund, an exchange, or a replacement of equal or lesser value — as long as the item meets the requirements above.
Return Process
Every return must be approved before it is sent back. Email support@dynamicdiesels.com or call 1-877-600-5667 and we’ll issue a valid Return Merchandise Authorization (RMA) number and a prepaid return label.
Do not send anything back without an approved RMA and the return label we provide. Returns sent without both will not be accepted or processed. See our refund policy for full details.
Warranty
All tuning devices come with a 90-day manufacturer’s warranty from the date of delivery. You have a full 90 days from delivery to start a warranty claim if an issue arises. We also honor all applicable manufacturer warranties on the products we sell; coverage period and claim process vary by brand and product category.
To start a claim, email support@dynamicdiesels.com or call 1-877-600-5667 with your order number. We may ask a few questions about the device to confirm the fault, and we may request proof of communication with the manufacturer, as they are often the primary contact for device issues.
Once your claim is approved, you can choose one of the following:
- Return for replacement: Send us the faulty device, and once we receive it we’ll dispatch a replacement of the same or a similar device of equal or lesser value.
- Return for refund: Return the faulty device and we’ll refund the original payment method. Please allow 3–4 business days for the refund to appear.
- Return for gift card: Receive a gift card for the faulty device, sent to the email on file and available to use right away.
You’ll receive a Return Merchandise Authorization (RMA) number and a prepaid return label to send the faulty device back. See our refund policy for full details.
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