

2020-2025 Duramax 5" SS Downpipe Back Exhaust System - No Muffler (DDC-5GM20)
Description
Fits
| Year | Make | Model |
| 2020-2025 | GM | Duramax 2500/3500 w/ 6.6L (4-Bolt Flange) |
Note: Fits all wheelbase and cab configurations unless otherwise specified. Only fits models equipped with the OEM-style 4-bolt flange off the turbo direct pipe. Aftermarket custom tuning is required. Designed for competition/race use only.
When you buy from Dirty Diesel, you’re buying peace of mind. We’ve put in the work to bring you exhaust systems that meet our strict standards for durability and flow. Every kit is vetted for a precision, bolt-on fit, ensuring you get a high-performance system that sounds as good as it performs, without the headache of poor fitment or subpar materials.
Features
- 5" Downpipe-Back High-Flow Design
- Heavy-Duty Stainless Steel Construction
- Straight-Pipe Configuration (No Muffler)
- OEM-Style 4-Bolt Flange for Secure Fitment
- No Sensor Bungs Required
- Mandrel-Bent Tubing for Maximum Velocity
- Improved Torque, Mileage, and Throttle Response
Includes
- 5" Aluminized Exhaust Pipe Kit
- Heavy-Duty Torque Clamps
- Pre-Weld Contour Bent Hangers
Original: $583.64
-65%$583.64
$204.27Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Description
Fits
| Year | Make | Model |
| 2020-2025 | GM | Duramax 2500/3500 w/ 6.6L (4-Bolt Flange) |
Note: Fits all wheelbase and cab configurations unless otherwise specified. Only fits models equipped with the OEM-style 4-bolt flange off the turbo direct pipe. Aftermarket custom tuning is required. Designed for competition/race use only.
When you buy from Dirty Diesel, you’re buying peace of mind. We’ve put in the work to bring you exhaust systems that meet our strict standards for durability and flow. Every kit is vetted for a precision, bolt-on fit, ensuring you get a high-performance system that sounds as good as it performs, without the headache of poor fitment or subpar materials.
Features
- 5" Downpipe-Back High-Flow Design
- Heavy-Duty Stainless Steel Construction
- Straight-Pipe Configuration (No Muffler)
- OEM-Style 4-Bolt Flange for Secure Fitment
- No Sensor Bungs Required
- Mandrel-Bent Tubing for Maximum Velocity
- Improved Torque, Mileage, and Throttle Response
Includes
- 5" Aluminized Exhaust Pipe Kit
- Heavy-Duty Torque Clamps
- Pre-Weld Contour Bent Hangers















