Collection: 2001-2004 6.6L LB7 Duramax Exhaust System & Components
2001-2004 6.6L LB7 Duramax Exhaust System & Components
Enhance your 2001-2004 6.6L LB7 Duramax’s exhaust system with our premium parts designed to improve exhaust flow, reduce backpressure, and increase engine performance. Whether you’re upgrading your downpipe, exhaust manifolds, or looking for high-performance Y-pipes and...
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PPE 2001-2004 (FED / 2001 CA) GM 6.6L Duramax High-Flow Exhaust Manifold and Up-Pipe Kit
Regular price From $899.99 USDSale price From $899.99 USD Regular priceUnit price / per$999.99 USDSale -
PPE 2002-2004 (CA LB7) GM 6.6L Duramax High-Flow Exhaust Manifold and Up-Pipe Kit
Regular price From $1,121.39 USDSale price From $1,121.39 USD Regular priceUnit price / per$1,245.99 USDSale -
PPE 2001-2004 (FED/2001 CA) GM 6.6L Duramax OEM Length Replacement High Flow Up-Pipe Kit
Regular price $269.99 USDSale price $269.99 USD Regular priceUnit price / per$299.99 USDSale -
PPE 2002-2004 (CA) GM 6.6L Duramax OEM Length Replacement High Flow Up-Pipe Kit
Regular price $449.99 USDSale price $449.99 USD Regular priceUnit price / per$499.99 USDSale -
PPE 2001-2004 (FED) GM 6.6L Duramax Replacement Up-Pipe (Passenger Side) for OEM Exhaust Manifold
Regular price $170.99 USDSale price $170.99 USD Regular priceUnit price / per$189.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax Replacement Up-Pipe (Driver Side) for OEM Exhaust Manifold
Regular price $134.99 USDSale price $134.99 USD Regular priceUnit price / per$149.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax Replacement Up-Pipe (Driver Side) for PPE Exhaust Manifold
Regular price $224.99 USDSale price $224.99 USD Regular priceUnit price / per$249.99 USDSale -
PPE 2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipe
Regular price $170.90 USDSale price $170.90 USD Regular priceUnit price / per$189.99 USDSale -
PPE 2002-2004 (CA) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipe
Regular price $170.99 USDSale price $170.99 USD Regular priceUnit price / per$189.99 USDSale -
PPE 2001-2004 FED GM 6.6L Duramax Replacement Up-Pipe (Passenger Side) for PPE Exhaust Manifold
Regular price $224.99 USDSale price $224.99 USD Regular priceUnit price / per$249.99 USDSale -
PPE 2001-2014 GM 6.6L Duramax Gasket for Lower Down-Pipe Flange
Regular price $6.29 USDSale price $6.29 USD Regular priceUnit price / per$6.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax Down-Pipe Support Bracket
Regular price $22.49 USDSale price $22.49 USD Regular priceUnit price / per$24.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax PPE Up-Pipe Gaskets (4pcs)
Regular price $26.99 USDSale price $26.99 USD Regular priceUnit price / per$29.99 USDSale -
PPE 2001-2016 GM 6.6L Duramax Up-pipes Bolt Set (12pcs)
Regular price $35.99 USDSale price $35.99 USD Regular priceUnit price / per$39.99 USDSale -
Fleece Performance 45 Degree Miter Cut Stack Cover 5 inch FPE-STK-CVR-5-45
Regular price $43.99 USDSale price $43.99 USD Regular priceUnit price / per -
Fleece Performance 45 Degree Miter Cut Stack Cover 6 inch FPE-STK-CVR-6-45
Regular price $44.99 USDSale price $44.99 USD Regular priceUnit price / per -
Fleece Performance 45 Degree Miter Cut Stack Cover 7 inch FPE-STK-CVR-7-45
Regular price $45.99 USDSale price $45.99 USD Regular priceUnit price / per -
Fleece Performance 45 Degree Miter Cut Stack Cover 8 inch FPE-STK-CVR-8-45
Regular price $47.99 USDSale price $47.99 USD Regular priceUnit price / per -
Fleece Performance 5 Inch 45 Degree Hood Stack Cover FPE-HSC-5-45
Regular price $40.99 USDSale price $40.99 USD Regular priceUnit price / per -
Fleece Performance 5 Inch Straight Cut Hood Stack Cover FPE-HSC-5-S
Regular price $40.99 USDSale price $40.99 USD Regular priceUnit price / per -
Fleece Performance 6 Inch 45 Degree Hood Stack Cover FPE-HSC-6-45
Regular price $41.99 USDSale price $41.99 USD Regular priceUnit price / per -
Fleece Performance 6 Inch Straight Cut Hood Stack Cover FPE-HSC-6-S
Regular price $41.99 USDSale price $41.99 USD Regular priceUnit price / per -
Fleece Performance 7 Inch 45 Degree Hood Stack Cover FPE-HSC-7-45
Regular price $42.99 USDSale price $42.99 USD Regular priceUnit price / per -
Fleece Performance 7 Inch Straight Cut Hood Stack Cover FPE-HSC-7-S
Regular price $42.99 USDSale price $42.99 USD Regular priceUnit price / per -
ATS Pulse Flow Exhaust Manifold Kit for 2001-2004 Chevy/GMC 6.6L Duramax LB7
Regular price $1,053.88 USDSale price $1,053.88 USD Regular priceUnit price / per -
ATS Direct Replacement Up-Pipe Kit for 2001-2010 Chevy/GMC 6.6L Duramax
Regular price $558.25 USDSale price $558.25 USD Regular priceUnit price / per -
Exhaust Brake - Universal Install
Regular price From $1,516.95 USDSale price From $1,516.95 USD Regular priceUnit price / per -
EXHAUST MANIFOLD CHEVY LB7/LLY/LBZ/LMM DURAMAX 2001-2010
Regular price $203.95 USDSale price $203.95 USD Regular priceUnit price / per
2001-2004 6.6L LB7 Duramax Exhaust System & Components
Enhance your 2001-2004 6.6L LB7 Duramax’s exhaust system with our premium parts designed to improve exhaust flow, reduce backpressure, and increase engine performance. Whether you’re upgrading your downpipe, exhaust manifolds, or looking for high-performance Y-pipes and accessories, our products are engineered to maximize exhaust efficiency and provide your Duramax with the power it needs.
High-Performance Exhaust System Parts for 6.6L LB7 Duramax
Our exhaust system parts for the 2001-2004 6.6L LB7 Duramax include exhaust manifolds, downpipes, up-pipes, and Y-pipes from top brands like ATS Diesel, Fleece Performance, and PPE. These parts are designed to reduce exhaust restrictions, improve turbo spool time, and enhance overall engine performance. Whether you need a replacement or a full exhaust system upgrade, these components are perfect for increasing horsepower, torque, and overall exhaust flow.
Why Choose Our Exhaust System Parts?
Upgrading your exhaust system is one of the most effective ways to improve your Duramax’s performance. Our parts are designed to increase exhaust flow, reduce turbo lag, and improve fuel efficiency. With durable materials and reliable performance, these components help your 6.6L LB7 Duramax operate at its peak potential.
Key Features:
- Improved Exhaust Flow: Components designed to reduce backpressure and improve turbo spool time.
- Enhanced Performance: Increases horsepower and torque while improving fuel efficiency.
- Durable Components: Built to withstand extreme temperatures and heavy-duty use.













