This product is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.
The Wehrli 17-19 Duramax L5P Stage 1 High Flow Bundle Kit - Cat Yellow is a performance upgrade designed to enhance airflow between the turbocharger and engine in the 2017-2019 L5P Duramax. This kit replaces the restrictive factory pipes with heavy-duty, high-flow components that improve overall efficiency, throttle response, and turbo spool-up. Constructed with durable materials, it eliminates common weak points such as boost leaks and plastic/rubber connections that can fail under high-performance or demanding conditions. The upgrade ensures a more consistent boost pressure and reduces the risk of failures in high-stress applications, making it ideal for enthusiasts seeking reliable power gains.
This bundle is specifically engineered for 2017-2019 Chevrolet Silverado and GMC Sierra trucks equipped with the L5P Duramax engine. It is a direct replacement for the factory intercooler pipes, featuring a 2.5-inch diameter design with heavy-duty construction to withstand rigorous use. The kit includes the hot side (driver) pipe and cold side (passenger) pipe, both designed to improve airflow and durability. Suitable for street, towing, or high-performance applications, this upgrade enhances engine efficiency and response while maintaining compatibility with stock or modified setups. Installation is straightforward for those familiar with intercooler piping, providing a reliable upgrade for demanding driving conditions.
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Payment Terms ▼
Buyers can currently safely and securely purchase from managed payments sellers with credit cards, debit cards, gift cards, Apple Pay, Google Pay, PayPal, and PayPal Credit. Payment is due at time of purchase.
Shipping Terms ▼
International Buyers — Please Note: Import duties, taxes, and fees aren't included in the item's price or shipping costs. The buyer is responsible for paying any import fees. Check with your country's customs office to find out what these additional charges will be before you bid or buy.
Free Shipping Disclaimer: For listings with free shipping, it only applies within the continental 48 states. Shipments to Alaska, Hawaii, Puerto Rico or any of the U.S. territories may incur an additional shipping charge. Outbound shipping charges are non-refundable and will be deducted from returns. Please contact us for additional information prior to placing your order.
Returns Policy ▼
All return requests must be made within 30 days of the delivery date with documentation related to said purchase as requested. Returns or refunds are only available for products that are returned in the same condition they were sent, brand new and sealed. Returns will NOT be accepted for opened or used items. Please contact customer support for any questions or concerns.
About the Seller ▼
Founded in 2010, WheelFlip is a trusted retailer specializing in aftermarket wheels and performance parts.
What began as a modular wheel customization shop has grown into a leading supplier serving both retail customers and OEM partners. Today, WheelFlip is proud to be one of the largest stocking premium JDM wheel retailers in North America.
We offer an extensive selection of top-tier brands including RAYS (Volk Racing, Gram Lights, RAYS Offroad), BBS (including Motorsport), Yokohama Advan, Desmond, Mugen, Spoon, Nismo, and more.
Beyond wheels, we carry a wide range of performance parts—from RECARO seats to Spoon aero components—supporting enthusiasts at every level.
CARB Compliance Notice:
Orders containing non-CARB compliant products shipped to a California address will be canceled and fully refunded in accordance with state regulations.
