2017-2019 Duramax L5P HSP Diesel Cold Air Intake (602-HSP)
The HSP Diesel Cold Air Intake is a powerful upgrade for 2017-2019 L5P Duramax-equipped Chevrolet and GMC trucks. Designed to eliminate airflow restrictions, it helps your truck breathe better and perform at its peak.
Why Upgrade Your L5P Intake?
The factory intake on the L5P Duramax engine is restrictive and undersized. It limits airflow, reducing performance and response. With the L5P platform offering high power potential from the factory, resolving airflow bottlenecks is essential. The HSP Cold Air Intake solves this problem with improved design and increased efficiency.
What Makes the HSP Cold Air Intake Different?
HSP's intake system is a full metal assembly featuring mandrel-bent tubing for smoother transitions and reduced turbulence. A large heatshield enclosure utilizes the OEM hood scoop for ram-air functionality, helping deliver colder, denser air. This results in improved throttle response, more consistent power, and increased overall performance ” all without the need for tuning. Dyno testing has shown increases of up to 20 horsepower on average.
Order Processing Time:
Orders are typically processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days depending on the product and customization required.
Shipping Methods:
Standard Shipping (3-7 business days - location dependent)
Express Shipping (1-2 business days- location dependent)
Packaging:
All parts are securely packaged to better prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.
Shipping Rates:
Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.
Order Tracking:
Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your OCDiesel account.
USA Shipping:
We ship to the USA! (Except California) Please note that USA shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.
Not all products are stocked in-house. To ensure you receive your desired items promptly, please check for availability before placing your order. Some products may be backordered due to high demand or supply chain constraints, which could result in longer delivery times.
We strive to keep our inventory updated regularly, but availability can change quickly. For the most accurate information, contact the OCDiesel customer service team using either this link, or the chat bubble on the bottom right of this page.
Most items are eligible for return within 30 days of shipping, provided they are unused, in original manufacturer packaging, and in resalable condition. All returns & cancellations are subject to restocking and cancellation fees.
Returns must include a Return Authorization Number (RA #) and be shipped with tracking. Return shipping costs are the responsibility of the customer.
Custom/special orders, electronics, and digital goods are final sale—no returns, refunds, or exchanges.
For full return instructions, fee details, and conditions, click here.
