2017-2023 Duramax 4500-6500 L5D AMDP HP Tuners Custom Tuning (L5D-HP)
Elevate your medium-duty truck's performance with HPTuners Custom Tuning, expertly calibrated by AMDP Custom Tuning for the 4500-6500 L5D Duramax diesel platform. Whether you're hauling heavy loads, towing trailers, or seeking enhanced drivability, this custom tune unlocks the true potential of your GM Duramax engine, delivering reliable power gains and optimized efficiency tailored to your needs.
Key Features:
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Increased Power Options: Choose from 0-150 HP over stock horsepower gains, allowing you to select the perfect level of performance enhancement without compromising durability.
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Shift-on-the-Fly Capability: Seamlessly switch between tune levels on the go, adapting to different driving conditions like towing, highway cruising, or off-road demands.
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Transmission Tuning Available: Fine-tuned transmission settings for smoother shifts, improved torque management, and better overall drivability, ensuring your truck handles the extra power effortlessly.
Requirements:
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MPVI3 Device: An HPTuners MPVI3 interface is required for flashing and data logging – the industry-standard tool for precise ECM modifications.
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Cab-Bus Simulator Plugs: Essential for simulating cab functions during the tuning process on these chassis cab models.
Fast Fulfillment:
Expect a quick 24-48 hour turnaround time for your custom tune file delivery, so you can get back on the road with upgraded performance in no time.
Backed by AMDP's expertise in Duramax tuning, this HPTuners solution provides safe, and is designed for long-term reliability. Upgrade your 4500-6500 L5D Duramax today and experience the difference in power, responsiveness, and control.
| Emissions |
Level 1 |
Level 2 |
Level 3 |
Level 4
|
| Off |
0HP |
50HP |
70HP |
150HP |
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.
