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2017-2023 Duramax 4" SS CAT & DPF Delete Pipe - No Muffler (DDC-3GM17)
Sale price
$1,420.00
Regular price
Regular price
$1,420.00
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.
2017-2023 Duramax 4" SS CAT & DPF Delete Pipe - No Muffler (DDC-3GM17)
Sale price
$1,420.00
Regular price
Regular price
$1,420.00
Unit price
Dirty Diesel Customs
Art: DDC-3GM17
Vehicle Fitment
Set your vehicle
Fits
- Chevrolet Silverado 2500 / 2500HD2017–2023
- Chevrolet Silverado 3500 / 3500HD2017–2023
- GMC Sierra 2500 / 2500HD2017–2023
- GMC Sierra 3500 / 3500HD2017–2023
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 |
| 2017-2023 | GM |
2500HD/3500HD w/L5P 6.6L Duramax |
Note: Direct bolt-on for Crew Cab Short Box; other configurations may need modifications.
The DDC-3GM17 by Dirty Diesel Customs is a CAT & DPF Delete Kit designed for 2017-2023 L5P 6.6L Duramax trucks. This high-performance 4" piping kit replaces stock components for improved fuel mileage, increased torque, and an aggressive, commanding exhaust note. Built for reliability and perfect fitment, it’s the ultimate upgrade for diesel performance enthusiasts.
Part Number: DDC-3GM17
Features
- 4" CAT & DPF Race Pipe
- OEM-Style 4-Bolt Flange
- Straight Pipe, No Muffler
- No Sensor Bungs
- Boosts Torque & Fuel Mileage
- T409 Stainless Steel Construction
- Easy Bolt-On Installation
- Clamp Torque: 50 ft-lbs
Notes
- These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe!