2004.5-2010 Downpipe Exhaust For Chevy/GMC 6.6L Duramax LLY/LBZ/LMM Diesel 3 Inch
ℹ️ DESCRIPTION
This SAMexhaust 3 Inch Downpipe Exhaust is designed for 2004.5-2010 Chevy/GMC 6.6L Duramax diesel engines (LLY, LBZ, LMM). Compatible with Chevrolet Silverado 2500HD & 3500HD and GMC Sierra 2500HD & 3500HD models. Made from durable stainless steel with a mirror-polished surface for a sleek look and enhanced performance. This downpipe improves exhaust flow, increasing engine efficiency and performance.
| Specification | Detail |
| Construction | 3" Mandrel-bent T-304 Stainless Steel |
| Primary Benefit | Improves exhaust flow and turbo response |
| Installation | Direct bolt-on (no tuning required) |
| Compliance | Maintains emissions compliance |
| Quality | Precision engineered for perfect fitment |
| Installation | Professional installation recommended |
🔍 Fitment:
- 2004.5-2010 Chevrolet Silverado 2500HD & 3500HD 2004.5-2010 GMC Sierra
- 2500HD & 3500HD Compatible with 6.6L Duramax LLY, LBZ, LMM diesel engines.(Not compatible with Cab & Chassis trucks.)
📜 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
Our Policies
SHIPPING
Ships from nearest warehouse within 1 business day, arrives in 5-8 days (most areas in 7 days).
RETURNS
30-day return policy for all products.
WARRANTY
2-year replacement warranty on all parts.
OEM EXHAUST MANIFOLDS VS PERFORMANCE HEADERS
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.