3.5" Downpipe Exhaust for 2017-2023 Chevy Silverado/GMC Sierra 2500/3500 6.6L L5P Duramax Diesel - High-Flow Turbo Upgrade
ℹ️ DESCRIPTION
Enhance your L5P Duramax's performance with this precision-engineered 3.5" downpipe upgrade. Featuring mandrel-bent stainless steel construction for optimal exhaust flow and improved turbo response, this direct bolt-on solution requires no tuning. The included heat wrap provides superior thermal management while maintaining full emissions compliance for your Silverado or Sierra HD truck.
| Specification | Detail |
| 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 |
| Installation | Professional installation recommended |
🔍 Fitment:
| Vehicle Model | Years | Engine |
|---|---|---|
| Chevrolet Silverado 2500HD | 2017-2023 | 6.6L L5P Duramax Diesel |
| Chevrolet Silverado 3500HD | 2017-2023 | 6.6L L5P Duramax Diesel |
| GMC Sierra 2500HD | 2017-2023 | 6.6L L5P Duramax Diesel |
| GMC Sierra 3500HD | 2017-2023 | 6.6L L5P Duramax Diesel |
📜 POLICY
🚚 Ships from nearest warehouse within 1 business day, arrives in 5-8 days（most area in 7 days）
🔄 30-day return policy
🔧 2-year replacement warranty
Note:
🔖 Contact Us First: If you encounter any issues with your order, please reach out to us immediately. We're committed to resolving any concerns quickly and to your satisfaction.
🤗 Feedback Consideration: Before leaving neutral or negative feedback, give us a chance to make things right. We'll work diligently to provide a solution that meets your needs.
📮 Contact Email: support@samexhaust.com
Attention
Products on this site are for off-road/racing use only and are not legal for public roads where emissions laws apply.
Professional installation recommended. Removing emissions equipment (DPF, CAT, SCR, DOC) requires deleting related sensors and a compatible tuner to avoid engine codes.
Performance gains may vary—no guarantees.