Exhaust Up-Pipe for 2017-2023 L5P 6.6L Duramax Sierra/Silverado 2500 3500 | SPELAB
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---tab Description---
Up-pipes and down-pipes – what do they do?
Up-pipe is a piping that connects the exhaust manifold with the turbo. Exhaust gases enter the turbo from the l5p up-pipe. Down-pipe is a piping that connects the turbo with the rest of the exhaust pipe. Exhaust gases leave the turbo from the down-pipe.
Fitment
• 2017-2023 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
• 2017-2023 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD
---tab FAQ---
Q1: What is the purpose of an L5P up pipe? A1: The L5P up pipe is a crucial component in the exhaust system that connects the exhaust manifolds to the turbocharger. It helps direct high-temperature exhaust gases efficiently, improving turbo spool and overall engine performance.
Q2: How does this Duramax up pipe differ from the stock version? A2: This Duramax up pipe is made from high-quality stainless steel , offering better durability, improved exhaust flow , and reinforced flex sections to reduce the risk of cracking compared to OEM pipes.
Q3: What options are available for this L5P up pipe? A3: SPELAB offers multiple configurations, including:
Up pipe only
Up pipe + downpipe
Up pipe with EGR compatibility
Up pipe + EGR + downpipe
Q4: Does this Duramax up pipe affect emissions compliance? A4: This L5P up pipe is available in both EGR-compatible and EGR-modified versions. If emissions compliance is a concern, choose the EGR-compatible version that retains factory emissions controls.
Q5: How difficult is the installation of this L5P up pipe? A5: The Duramax up pipe is designed for a bolt-on installation using factory-style mounting points. However, due to its location in the engine bay, installation may require specialized tools and mechanical experience.
Q6: Can this up pipe withstand extreme temperatures? A6: Yes, the SPELAB L5P up pipe is built with heat-resistant stainless steel and reinforced flex joints, allowing it to handle extreme exhaust temperatures without failure.
Q7: Will this Duramax up pipe increase horsepower? A7: While this L5P up pipe primarily enhances reliability and exhaust flow, it can contribute to better turbo efficiency and throttle response , which may support mild horsepower gains, especially when paired with other performance upgrades.
Q8: Does this up pipe require additional modifications? A8: No, this Duramax up pipe is a direct-fit replacement for stock up pipes and does not require modifications. However, pairing it with an upgraded downpipe or performance exhaust can further improve efficiency.
Q9: What maintenance is required after installing this L5P up pipe? A9: After installation, it’s recommended to:
Check for leaks after the first few drives.
Ensure all clamps and bolts remain tight over time.
Monitor EGTs (Exhaust Gas Temperatures) if using this pipe with performance modifications.
Q10: How does this up pipe benefit towing applications? A10: This Duramax up pipe helps maintain consistent power delivery and prevents heat-related performance loss , making it a great upgrade for trucks used in heavy-duty towing.
---tab Shipping & Returns---
Fast Shipping Policy
Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy
---tab Description---
Up-pipes and down-pipes – what do they do?
Up-pipe is a piping that connects the exhaust manifold with the turbo. Exhaust gases enter the turbo from the l5p up-pipe. Down-pipe is a piping that connects the turbo with the rest of the exhaust pipe. Exhaust gases leave the turbo from the down-pipe.
Fitment
• 2017-2023 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
• 2017-2023 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD
---tab FAQ---
Q1: What is the purpose of an L5P up pipe? A1: The L5P up pipe is a crucial component in the exhaust system that connects the exhaust manifolds to the turbocharger. It helps direct high-temperature exhaust gases efficiently, improving turbo spool and overall engine performance.
Q2: How does this Duramax up pipe differ from the stock version? A2: This Duramax up pipe is made from high-quality stainless steel , offering better durability, improved exhaust flow , and reinforced flex sections to reduce the risk of cracking compared to OEM pipes.
Q3: What options are available for this L5P up pipe? A3: SPELAB offers multiple configurations, including:
Up pipe only
Up pipe + downpipe
Up pipe with EGR compatibility
Up pipe + EGR + downpipe
Q4: Does this Duramax up pipe affect emissions compliance? A4: This L5P up pipe is available in both EGR-compatible and EGR-modified versions. If emissions compliance is a concern, choose the EGR-compatible version that retains factory emissions controls.
Q5: How difficult is the installation of this L5P up pipe? A5: The Duramax up pipe is designed for a bolt-on installation using factory-style mounting points. However, due to its location in the engine bay, installation may require specialized tools and mechanical experience.
Q6: Can this up pipe withstand extreme temperatures? A6: Yes, the SPELAB L5P up pipe is built with heat-resistant stainless steel and reinforced flex joints, allowing it to handle extreme exhaust temperatures without failure.
Q7: Will this Duramax up pipe increase horsepower? A7: While this L5P up pipe primarily enhances reliability and exhaust flow, it can contribute to better turbo efficiency and throttle response , which may support mild horsepower gains, especially when paired with other performance upgrades.
Q8: Does this up pipe require additional modifications? A8: No, this Duramax up pipe is a direct-fit replacement for stock up pipes and does not require modifications. However, pairing it with an upgraded downpipe or performance exhaust can further improve efficiency.
Q9: What maintenance is required after installing this L5P up pipe? A9: After installation, it’s recommended to:
Check for leaks after the first few drives.
Ensure all clamps and bolts remain tight over time.
Monitor EGTs (Exhaust Gas Temperatures) if using this pipe with performance modifications.
Q10: How does this up pipe benefit towing applications? A10: This Duramax up pipe helps maintain consistent power delivery and prevents heat-related performance loss , making it a great upgrade for trucks used in heavy-duty towing.
---tab Shipping & Returns---
Fast Shipping Policy
Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy
SPELAB Auto Parts: 1 year from delivery; supplier conditions apply. SPELAB offers a one-year limited warranty from delivery for material/workmanship defects under normal use, original purchaser only, with proof of purchase. Consumables, wear/cosmetic damage, improper installation, alteration, misuse and removal/installation labor are excluded. Approved remedies are repair, replacement or replacement parts at SPELAB’s discretion.
Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
SPELAB Auto Parts warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
- Return eligibility
- SPELAB allows return requests within 30 days of delivery, with authorization and undamaged goods, original packaging and accessories. Tuners are final sale. Customer pays voluntary return shipping; original shipping is not refunded. SPELAB pays return shipping for approved damaged, incorrect or manufacturing-defective items. Transit damage must be reported within two business days and incorrect items within seven days. Based on what SPELAB Auto Parts 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
- SPELAB Auto Parts
- Warranty duration
- 1 year from delivery; supplier conditions apply
- 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
- SPELAB Auto Parts
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.