3.5" Downpipe & Up-Pipe & 4" DPF Race Pipe & EGR Delete Kit For 2017-2023 Silverado/Sierra 2500HD/3500HD L5P Duramax 6.6L
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This performance bundle combines a downpipe, uppipe, DPF, and EGR delete kit to comprehensively upgrade the exhaust system for compatible diesel models such as the 2017–2023 Chevy Duramax 6.6L and 2010–2014 Dodge Ram Cummins 6.7L. The downpipe and uppipe work together to optimize exhaust flow between the turbocharger and exhaust manifold, increasing horsepower and turbo efficiency. By removing the restrictive DPF and EGR systems, the kit reduces backpressure and improves fuel mileage, while the EGR delete enhances coolant recirculation for more reliable operation.
EGR Features:
- Function: Eliminates factory EGR system
- Benefits: Improved engine efficiency and better airflow
- Cooling Performance: Faster coolant recirculation
- Construction: High-quality materials for long-term reliability
- Installation: Direct fitment design
- Performance: Optimizes engine cooling and efficiency
- Use: For off-road/competition use only. May require ECU tuning.
- 2017-2023 Chevrolet Silverado 2500 & 3500HD - L5P Duramax Diesel 6.6L Pickup Trucks
- 2017-2023 GMC Sierra 2500 & 3500HD - L5P Duramax Diesel 6.6L Pickup Trucks
- Note: Will not fit Cab & Chassis trucks.
| VEHICLE NAME | YEAR | ENGINE |
|---|---|---|
| Chevrolet Silverado 2500HD | 2017~2023 | 6.6L |
| Chevrolet Silverado 3500HD | 2017~2023 | 6.6L |
| GMC Sierra 2500HD | 2017~2023 | 6.6L |
| GMC Sierra 3500HD | 2017~2023 | 6.6L |
Downpipe Features:
- Construction: 3.5" Mandrel-bent Stainless Steel
- Primary Benefit: Improves exhaust flow and turbo response
- Installation: Direct bolt-on (no tuning required)
- Included: Heat wrap for thermal management
- Compliance: Maintains emissions compliance
- Quality: Precision engineered for perfect fitment
- Application: Downpipe Exhaust
- Material: Stainless Steel
- Surface: Mirror Polish
- Installation: Professional installation recommended
- 2017-2023 Chevrolet Silverado 2500 & 3500HD - L5P Duramax Diesel 6.6L Pickup Trucks
- 2017-2023 GMC Sierra 2500 & 3500HD - L5P Duramax Diesel 6.6L Pickup Trucks
- Note: Will not fit Cab & Chassis trucks.
| VEHICLE NAME | YEAR | ENGINE |
|---|---|---|
| Chevrolet Silverado 2500HD | 2017~2023 | 6.6L |
| Chevrolet Silverado 3500HD | 2017~2023 | 6.6L |
| GMC Sierra 2500HD | 2017~2023 | 6.6L |
| GMC Sierra 3500HD | 2017~2023 | 6.6L |
DPF Race Features:
- Exhaust Material: T-409 stainless steel. Unlike T-304 Stainless it's still magnetic. So if you testing to see if you actually got stainless; beware that a magnet will still stick to it.
- Thickness: 2mm
- Inlet Diameter: 4.0"/5.0
- Mandrel-bent construction: Maximum flow efficiency, helping your diesel breathe easier
- 2017-2019 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
- 2017-2019 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD
- Crew cab short bed & crew cab long bed. This will not fit the 3500/4500/5500 Cab & Chassis commercial-style truck.
| VEHICLE NAME | YEAR | ENGINE |
|---|---|---|
| Chevrolet Silverado 2500HD | 2017~2019 | 6.6L |
| Chevrolet Silverado 3500HD | 2017~2019 | 6.6L |
| GMC Sierra 2500HD | 2017~2019 | 6.6L |
| GMC Sierra 3500HD | 2017~2019 | 6.6L |
Up Pipe Features:
- Upgrade the L5P to achieve higher flow by bolting on PPE OEM-Length Replacement High-Flow Up-Pipes.
- The Length Up-Pipes are manufactured from stainless steel. These new Up-Pipes include the superior internally-sleeved bellows, also manufactured from stainless steel.
- This system is engineered to take the abuse of high temperatures and high pressures, while promoting increased exhaust flow and lower EGTs.
- For 2017-2020 Chevy Silverado 2500HD/3500HD 6.6L L5P Duramax Diesel
- For 2017-2020 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax Diesel
| VEHICLE NAME | YEAR | ENGINE |
|---|---|---|
| Chevrolet Silverado 2500HD | 2017~2020 | 6.6L |
| Chevrolet Silverado 3500HD | 2017~2020 | 6.6L |
| GMC Sierra 2500HD | 2017~2020 | 6.6L |
| GMC Sierra 3500HD | 2017~2020 | 6.6L |
SHIPPING & DELIVERY
Fast Processing & Reliable Transit
- Processing: Orders are processed and shipped from the nearest available warehouse within 1 business day after payment.
- Delivery: Estimated delivery time is approximately 3–4 business days after shipment.
- Shipping - Free shipping on all orders within the contiguous 48 U.S. states.
RETURNS & EXCHANGES
30-Day Hassle-Free Policy
- Return Window: We offer a 30-day return policy from the date of delivery.
- Item Condition: Returned items should be unused, uninstalled, and in their original packaging when possible.
- Return Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.
WARRANTY
2-Year Limited Replacement Warranty
- Duration: All products are backed by a 2-year limited warranty.
- Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).
CUSTOMER SUPPORT
We’re Here to Help – Contact Us First
- Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
- Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
- Email Support: You can reach us at support@XKVracing.com.
Important Notice
Products on this site are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, or legal for use on public roads unless explicitly stated.
Some products may remove, replace, relocate, disable, or alter emissions-related components, including but not limited to catalytic converters, EGR, DPF, SCR, DOC, O2 sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes or drivability issues.
Professional installation is recommended. Buyers are responsible for verifying product compatibility, local regulations, emissions requirements, and any required tuning or supporting modifications before purchase and installation.
Performance gains, sound changes, airflow improvements, temperature changes, fuel economy changes, fitment, and drivability results may vary. No specific performance gains are guaranteed.