2011-2015 Duramax LML P1 4" CAT & DPF Race Pipe (CGMAL426)

P1 Performance Products Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified. These P1 Performance Products Competition kits eliminate factory emissions devices and require "Race" tuning. They are only sold for offroad use in sanctioned racing events. See features for more information on this kit.

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)
Express Shipping (1-2 business days)

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.

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.