2011-2016 Duramax LML Motor Ops EFILive AutoCal V3 Custom Tuning
Your choice of the 5 power levels, including light tow, heavy tow, race, sport economy and optimized stock for your 2011, 2012, 2013, 2014, 2015, 2016 Chevy Silverado or GMC Sierra.
Choose your power level
HEAVY TOW
- For towing from 8,000lbs up to Gross Vehicle Weight Rating
- Wider torque curve assists heavy loads
- + 40 RWHP, + 80 ft-lbs torque
- Exhaust temperatures drop up to 100F under full load
LIGHT TOW
- For those towing below 8,000lbs
- Perfect balance of sport driving & functionality
- Designed for weekend tower, boats, small tractors, etc
- Unhook and enjoy a sportier drive
- + 60HP, + 120 ft-lbs torque
SPORT ECONOMY
- Fun “unloaded” daily driving
- For driving around town, highways
- Impress your friends
- Put a smile on your face
- + 110 RWHP, +200 ft-lbs torque
- Puts your vehicle near the 500 RWHP mark
RACE
- Maxes out the factory fuel system
- +140 RWHP, +260 ft-lbs torque
- Adds 260 ft-lbs of torque over factory
- Recommend transmission tune to avoid premature wear
- If you drive responsibly, can use Performance as you would Sport Economy
- Also recommend FASS or Air Dog lift pump to maintain 530 RWHP
OPTIMIZED STOCK:
- + 10-15 HP, + 30-40 ft-lbs torque
- Leaves factory rev limit in place
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.
