Factory cooler setups recirculate soot and harmful gasses through your engine causing build-up and clogs, resulting in loss of performance and proven mechanical issues. GDP Cooler Upgrade Kits remove those concerns from the equation. GDP components install with an exact fit resulting in a longer lasting & better running truck, less turbo lag for better throttle response, cooler engine temps, less weight and a cleaner looking engine bay. Proudly Made in the USA.

Customer Notification and Disclaimer of Liability. This is a race-only product. It is not legal for sale or use on pollution controlled vehicles that are driven on public streets, roads, or highways. Buyer’s use or installation of this product for itself or for Buyer’s customer is at Buyer’s own risk. The Buyer is responsible for obeying federal, state, and local laws. Only Buyer can determine end customer’s use and thus assumes any and all liability hereby waiving any and all claims against Sunny Diesel LLC in the sale of this product to the maximum extent permissible by law. Make sure to abide by all local, state, and federal laws, including emissions, vehicle safety, and traffic laws. It is Buyer’s responsibility to know what those laws are and how they apply to Buyer or Buyer’s customer. This product is designed and intended solely for legally-organized and sanctioned, closed- course, off-road competition use and is not for use on public streets, roads, or highways. This Product is capable of disabling the emissions system on some vehicles. Use on public streets, roads, or highways is a violation of federal and certain state (including California) and local environmental laws

2004.5-2005 LLY DURAMAX | COOLER UPGRADE KIT