HSP Diesel Cold Air Intake for 2020-2025 Chevrolet and GMC L5P Duramax
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
Colours and prices as published by HSP Diesel · verified 9/8/2026
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- Ships from HSP Diesel
L5P Cold Air Intake for 2020–2025 Chevrolet & GMC Duramax The HSP Cold Air Intake for 2020–2025 Chevrolet and GMC L5P Duramax trucks is a performance-focused upgrade designed to improve airflow while maintaining factory drivability. Featuring smooth 4.5-inch mandrel-bent tubing and HSP’s MEGA air filter, this intake delivers increased airflow without requiring tuning. This L5P cold air intake is engineered to retain factory MAF readings, allowing the truck to operate properly with no calibration changes while supporting improved throttle response and overall efficiency. HSP L5P Cold Air Intake Design The intake system uses precision-formed tubing and Santoprene TPV seals to create a tight seal against the fender and hood. This design helps ensure incoming air is directed through the intake system without leaks or heat intrusion. With increased airflow compared to the factory intake, this system supports improved engine breathing while maintaining consistent performance across daily driving and towing conditions. Air Filter Life System (AFLS) Disable Procedure Some 2020–2025 L5P Duramax trucks may require disabling the factory Air Filter Life System to prevent false “Change Air Filter” alerts caused by the intake’s higher airflow. On the Driver Information Center, open the Options menu and select Info Page Options. Verify that Air Filter Life is enabled. Navigate to the Info section and select Air Filter Life. Select Disable. This disables the alert, which cannot recalibrate for increased airflow. Disabling the alert has no effect on vehicle operation. What’s Included 1x L5P (2020–2025) Cold Air Intake Tube (HSP-IN-155) 1x L5P 2020–2025 Heat Shield Box (HSP-IN-738) 1x L5P 2020–2025 Intake Lid (HSP-IN-738-1) 1x L5P Intake Kit (HSP-KIT-021-HSP) 1x L5P 2020 Factory Plug Kit (HSP-KIT-FP-021-HSP) 1x MEGA 4.5" Straight Air Filter (RFB-514-1-RFAB) Key Benefits Up to 88% higher airflow compared to stock intake Bolt-on installation with factory MAF calibration retained Cooler, denser intake charge Santoprene TPV seals reduce unwanted air leaks Large 4.5-inch MEGA filter for increased surface area Our Warranty HSP NO BS LIMITED LIFETIME WARRANTY HSP stands behind every intake system we manufacture. Our No BS Limited Lifetime Warranty reflects our commitment to quality, reliability, and long-term support. Click here to read the full HSP Warranty
L5P Cold Air Intake for 2020–2025 Chevrolet & GMC Duramax The HSP Cold Air Intake for 2020–2025 Chevrolet and GMC L5P Duramax trucks is a performance-focused upgrade designed to improve airflow while maintaining factory drivability. Featuring smooth 4.5-inch mandrel-bent tubing and HSP’s MEGA air filter, this intake delivers increased airflow without requiring tuning. This L5P cold air intake is engineered to retain factory MAF readings, allowing the truck to operate properly with no calibration changes while supporting improved throttle response and overall efficiency. HSP L5P Cold Air Intake Design The intake system uses precision-formed tubing and Santoprene TPV seals to create a tight seal against the fender and hood. This design helps ensure incoming air is directed through the intake system without leaks or heat intrusion. With increased airflow compared to the factory intake, this system supports improved engine breathing while maintaining consistent performance across daily driving and towing conditions. Air Filter Life System (AFLS) Disable Procedure Some 2020–2025 L5P Duramax trucks may require disabling the factory Air Filter Life System to prevent false “Change Air Filter” alerts caused by the intake’s higher airflow. On the Driver Information Center, open the Options menu and select Info Page Options. Verify that Air Filter Life is enabled. Navigate to the Info section and select Air Filter Life. Select Disable. This disables the alert, which cannot recalibrate for increased airflow. Disabling the alert has no effect on vehicle operation. What’s Included 1x L5P (2020–2025) Cold Air Intake Tube (HSP-IN-155) 1x L5P 2020–2025 Heat Shield Box (HSP-IN-738) 1x L5P 2020–2025 Intake Lid (HSP-IN-738-1) 1x L5P Intake Kit (HSP-KIT-021-HSP) 1x L5P 2020 Factory Plug Kit (HSP-KIT-FP-021-HSP) 1x MEGA 4.5" Straight Air Filter (RFB-514-1-RFAB) Key Benefits Up to 88% higher airflow compared to stock intake Bolt-on installation with factory MAF calibration retained Cooler, denser intake charge Santoprene TPV seals reduce unwanted air leaks Large 4.5-inch MEGA filter for increased surface area Our Warranty HSP NO BS LIMITED LIFETIME WARRANTY HSP stands behind every intake system we manufacture. Our No BS Limited Lifetime Warranty reflects our commitment to quality, reliability, and long-term support. Click here to read the full HSP Warranty
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.