Exhaust Downpipe · SKU SPAS-1142
4 Inch EXHAUST DOWNPIPE for Dodge Ram 6.7L Cummins 2013-2017 Diesel Truck Cat DPF Delete Pipe Eliminator
It replaces the factory downpipe between the turbo and the catalytic converter, and is designed for DPF and cat delete applications. Fitment is year and model specific and does not cover Cab and Chassis or non-diesel variants.
- Size4 inch
- Package1x Downpipe
- Fitment2013-2017 Dodge Ram 6.7L Cummins
- ExclusionDoes not fit Cab and Chassis or non-diesel models
What You Get
Key Benefits
- 4 inch bore allows exhaust to exit the turbo with reduced back pressure for improved spool and flow
- 201 stainless steel resists corrosion and heat cycling better than mild steel in salt-prone environments
Why Buyers Switch
Problems It Solves
- Factory downpipes restrict turbo flow and increase exhaust gas temperature under load
- Mild steel aftermarket pipes rust at the flange within a few seasons on salted roads
- Poorly machined flanges leak at the turbo joint and require rework or return
- Universal pipes require cutting and welding, which increases labour cost and reduces shop margins
Where It Is Used
Application Scenarios
- Diesel performance shops installing DPF delete systems on 2013-2017 Ram trucks
- Distributors stocking bolt-on Cummins exhaust parts for the 2013-2017 model years
- Fleet maintenance teams replacing corroded factory downpipes on high-mileage trucks
- Online sellers needing a vehicle-specific part with a clean fitment list and high-quality visuals
Buyers
Who It Is For
- Performance parts distributors buying Cummins hard parts by the pallet
- Truck accessory wholesalers serving North American diesel truck owners
Construction
Technical Features
- Bolt-on replacement geometry that follows the factory routing for easy installation
Data
Specifications
| Size | 4 inch |
|---|---|
| Package | 1x Downpipe |
| Fitment | 2013-2017 Dodge Ram 6.7L Cummins |
| Exclusion | Does not fit Cab and Chassis or non-diesel models |
Material
Materials
- 201 stainless steel tube
Manufacturing
How It Is Made
Tube bending to match the factory downpipe routing
Test fit check against the flange pattern before packing
Checks
Quality Control
- Flange bolt pattern and sealing face checked before welding
- Weld seams inspected for pinholes along the full joint
Private Label
Customisation Options
- Private label packaging and barcode labels on request
- Bulk cartons available for container orders instead of single retail boxes
Comparison
Compared With The Alternatives
| Factory Duramax downpipe | The stock pipe includes emissions equipment and restricts flow, this one removes the cat and DPF for a larger 4 inch bore |
|---|---|
| Mild steel aftermarket downpipe | Mild steel is cheaper but corrodes at the flange; 201 stainless resists salt and heat cycling better |
| Universal cut-to-fit pipe | A universal pipe covers more trucks but requires cutting and welding; this one bolts on without modification |
Installation
Use Guide
- Confirm the truck is a 2013-2017 Dodge Ram 6.7L Cummins diesel and not a Cab and Chassis or non-diesel model
- Let the exhaust cool fully before removing the factory downpipe
- Replace the turbo outlet gasket rather than reusing the old one
- Torque the flange bolts evenly in a cross pattern to maintain sealing face flatness
- Recheck flange torque after the first heat cycle
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Answers
Questions About This Part
Will this fit a 2015 Ram 3500 Cab and Chassis?
No. The part covers 2013-2017 Dodge Ram 6.7L Cummins diesel trucks and is not designed for Cab and Chassis models.
What size is the pipe?
4 inch. It replaces the factory downpipe from the turbo outlet.
What is included in the package?
One downpipe. Gaskets and hardware are not included with this part number, so plan on a fresh turbo outlet gasket.
Can we get our own brand on the box?
Yes. Private label packaging and barcode labels can be arranged, and bulk cartons are available for container orders.
Is this street legal where I sell?
Emissions rules differ by market and we make no emissions approval claim for this part. Check your local regulations before resale.
Get This Part Quoted
Send the quantity you need and your market, and the reply will cover price, packing and lead time.