2024-2026 Duramax L5P Banks Derringer High Output (671XX)
The Banks Derringer High Output boosts your 2024-2026 Duramax 6.6L with more torque for easier towing and climbing. Pick from 6 power modes, including fuel-saving and max power. It talks to your truck’s brain, adjusts on the fly, and even handles altitude changes. Safety features keep your engine and transmission safe. Control it all with the iDash Pro and Bluetooth app. Plus, it’s warranty-friendly and leaves no mess when removed. Simple, powerful, and smart.
- Adds 86 hp & 178 lb-ft at the wheels
- 6 power levels
- Changed on-the-fly via iDash
- Interfaces with OBD (On-Board Diagnostics) to communicate with vehicle's ECM
- Warranty friendly
- Works while in cruise control
- AutoRate tunes in real time using vehicle diagnostics
- ActiveSafety protects engine/powertrain
- Transcommand protects transmission
- Real-time bar graph on iDash displays Derringer's added power
- Control, monitor, and update wirelessly via iDash Pro's Bluetooth connectivity
Please note that actual products may differ from images shown on our website. While we strive for accuracy in product listings, manufacturers may make changes to design, contents, color, or packaging without notice. Product images are for illustrative purposes only and may not represent the exact item you receive.
By purchasing, you acknowledge and accept that variations may occur and release OCDiesel from any liability related to product appearance differences.
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.
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We strive to keep our inventory updated regularly, but availability & pricing can change quickly without notice. For the most accurate information & pricing, 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.
On products with status "Contact for availability" please contact us before ordering to confirm availability. Orders placed without prior availability confirmation are subject to current lead times and our cancellation/restocking policy.
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.
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