HSP Diesel Ceramic Coated Cast Manifold and Up-Pipe Bundle for 2001-2004 Chevrolet and GMC LB7 Duramax
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HSP Diesel Ceramic Coated Cast Manifold and Up-Pipe Bundle for 2001–2004 Chevrolet / GMC LB7 Duramax The HSP Diesel Ceramic Coated Cast Manifold and Up-Pipe Bundle is the ultimate exhaust flow and reliability upgrade for the 2001–2004 LB7 Duramax. Combining HSP’s high-flow one-piece cast manifolds with heavy-duty 2” replacement up-pipes, this package eliminates common factory failure points while improving turbo response, exhaust flow, durability, and overall performance. The factory exhaust manifolds and up-pipes are both known restrictions on the LB7 platform. Cracking manifolds, warped flanges, leaking bellows, and broken hardware are all common issues that can lead to power loss, excessive heat, and costly repairs. HSP Diesel engineered this bundle to solve those problems while dramatically improving airflow and reliability. Why Upgrade to the HSP Manifold and Up-Pipe Bundle? Factory manifolds are restrictive and prone to cracking or warping over time. The OEM up-pipes are also known to fail at the bellows, causing boost and exhaust leaks that reduce performance and reliability. By upgrading both components together, you create a complete high-flow exhaust path from the manifolds to the turbocharger. This results in lower exhaust gas temperatures, faster spool-up, improved throttle response, increased reliability, and additional horsepower potential. What Makes the HSP Manifold and Up-Pipe Bundle Different? The HSP One Piece Cast Manifolds are manufactured from high-strength cast steel and precision finished on a 5-axis CNC machine for superior fitment and flow characteristics. Their high-flow, low-profile design removes the common restriction found in the factory driver-side manifold while providing increased strength compared to multi-piece welded designs. The included HSP 2” Up-Pipes are constructed from heavy-wall 304 stainless steel with reinforced sleeved bellows to withstand extreme heat and pressure. Combined with the improved manifold flow, these up-pipes help maximize turbo efficiency and durability under demanding conditions. Both the manifolds and up-pipes are ceramic coated for superior heat management and protection up to 2,000°F. What's Included (1) LB7 One Piece Cast Manifold – Driver Side (HSP-IN-660-D) (1) LB7 One Piece Cast Manifold – Passenger Side (HSP-IN-660-P) (1) 2” Replacement Passenger Up-Pipe (1) 2” Replacement Driver Up-Pipe (2) 1/8” NPT Brass Plug (RFB-811-RFAB) (1) Manifold Gasket Set (RFB-820-RFAB) (2) Up-Pipe Gasket (Turbo Side) (2) Up-Pipe Gasket (Manifold Side) (12) M10x1.5x25mm Socket Head Cap Bolts (RFB-833-RFAB) (14) M10x1.5x35mm Bolts (RFB-834-RFAB) (1) M10x1.5x80mm Bolt (RFB-859-RFAB) (1) M10x1.5x100mm Bolt (RFB-860-RFAB) Vehicle Fitment LB7 Duramax: 2001–2004 Chevrolet Silverado / GMC Sierra HD (VIN Code 1) How to Identify the VIN Code The engine code is determined by the 8th character of the VIN number. The 10th character indicates the model year of the vehicle. Overview Complete manifold and up-pipe upgrade package High-flow one-piece cast manifold design Heavy-wall 304 stainless steel up-pipes Reinforced heavy-duty sleeved bellows Lower exhaust gas temperatures Improved turbo spool-up and throttle response Eliminates common factory exhaust restrictions Ceramic coating rated up to 2,000°F Increased reliability and durability Includes all necessary gaskets and hardware Our Warranty HSP NO BS LIMITED LIFETIME WARRANTY At HSP we believe in our products and stand firmly behind every single one that leaves our facility. For years we have taken care of almost everything and anything that our customers had issues with—even without a formal warranty policy. That commitment hasn’t changed. With the HSP No BS Limited Lifetime Warranty, we’ve simply put it in writing. For more information about our Lifetime, No BS Warranty, click HERE.
HSP Diesel Ceramic Coated Cast Manifold and Up-Pipe Bundle for 2001–2004 Chevrolet / GMC LB7 Duramax The HSP Diesel Ceramic Coated Cast Manifold and Up-Pipe Bundle is the ultimate exhaust flow and reliability upgrade for the 2001–2004 LB7 Duramax. Combining HSP’s high-flow one-piece cast manifolds with heavy-duty 2” replacement up-pipes, this package eliminates common factory failure points while improving turbo response, exhaust flow, durability, and overall performance. The factory exhaust manifolds and up-pipes are both known restrictions on the LB7 platform. Cracking manifolds, warped flanges, leaking bellows, and broken hardware are all common issues that can lead to power loss, excessive heat, and costly repairs. HSP Diesel engineered this bundle to solve those problems while dramatically improving airflow and reliability. Why Upgrade to the HSP Manifold and Up-Pipe Bundle? Factory manifolds are restrictive and prone to cracking or warping over time. The OEM up-pipes are also known to fail at the bellows, causing boost and exhaust leaks that reduce performance and reliability. By upgrading both components together, you create a complete high-flow exhaust path from the manifolds to the turbocharger. This results in lower exhaust gas temperatures, faster spool-up, improved throttle response, increased reliability, and additional horsepower potential. What Makes the HSP Manifold and Up-Pipe Bundle Different? The HSP One Piece Cast Manifolds are manufactured from high-strength cast steel and precision finished on a 5-axis CNC machine for superior fitment and flow characteristics. Their high-flow, low-profile design removes the common restriction found in the factory driver-side manifold while providing increased strength compared to multi-piece welded designs. The included HSP 2” Up-Pipes are constructed from heavy-wall 304 stainless steel with reinforced sleeved bellows to withstand extreme heat and pressure. Combined with the improved manifold flow, these up-pipes help maximize turbo efficiency and durability under demanding conditions. Both the manifolds and up-pipes are ceramic coated for superior heat management and protection up to 2,000°F. What's Included (1) LB7 One Piece Cast Manifold – Driver Side (HSP-IN-660-D) (1) LB7 One Piece Cast Manifold – Passenger Side (HSP-IN-660-P) (1) 2” Replacement Passenger Up-Pipe (1) 2” Replacement Driver Up-Pipe (2) 1/8” NPT Brass Plug (RFB-811-RFAB) (1) Manifold Gasket Set (RFB-820-RFAB) (2) Up-Pipe Gasket (Turbo Side) (2) Up-Pipe Gasket (Manifold Side) (12) M10x1.5x25mm Socket Head Cap Bolts (RFB-833-RFAB) (14) M10x1.5x35mm Bolts (RFB-834-RFAB) (1) M10x1.5x80mm Bolt (RFB-859-RFAB) (1) M10x1.5x100mm Bolt (RFB-860-RFAB) Vehicle Fitment LB7 Duramax: 2001–2004 Chevrolet Silverado / GMC Sierra HD (VIN Code 1) How to Identify the VIN Code The engine code is determined by the 8th character of the VIN number. The 10th character indicates the model year of the vehicle. Overview Complete manifold and up-pipe upgrade package High-flow one-piece cast manifold design Heavy-wall 304 stainless steel up-pipes Reinforced heavy-duty sleeved bellows Lower exhaust gas temperatures Improved turbo spool-up and throttle response Eliminates common factory exhaust restrictions Ceramic coating rated up to 2,000°F Increased reliability and durability Includes all necessary gaskets and hardware Our Warranty HSP NO BS LIMITED LIFETIME WARRANTY At HSP we believe in our products and stand firmly behind every single one that leaves our facility. For years we have taken care of almost everything and anything that our customers had issues with—even without a formal warranty policy. That commitment hasn’t changed. With the HSP No BS Limited Lifetime Warranty, we’ve simply put it in writing. For more information about our Lifetime, No BS Warranty, click HERE.
HSP offers a limited lifetime warranty to the original purchaser on eligible HSP products. Underhood powder coating has separate two-year limited coverage. Non-HSP brands follow their own manufacturer warranties. Discontinued products and customer/installer damage are excluded. Claim authorization is required; customer pays inbound shipping for ordinary claims.
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
HSP Diesel warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
- Return eligibility
- HSP states returns must be postmarked within 30 days of purchase, new and unused with original tags and packaging, with an approved RMA. A 15% restocking fee and customer-paid return shipping apply. Special orders, non-HSP dropship products, apparel, used items and custom colors are excluded. Based on what HSP Diesel offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- HSP Diesel
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- HSP Diesel
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.