Replace your restrictive factory intake manifold with our DHD LLY High Flow Intake Kit. Our one piece cast aluminum intake allows for a massive increase in intake volume. When compared to the factory intake plumbing our high flow intake bridge flows an impressive 152% more volume. This intake will not only increase horsepower, torque and airflow throughout the engine, but it will also reduce EGTs and drive pressure. The reduction in EGT and drive pressure will help yield a longer running, healthier engine.
This kit includes the main intake assembly and all necessary hardware for installation. We recommend our DHD 700-125 or DHD 700-155 Fuel Block Upgrade kit when installing our LLY High Flow Intake.
We also recommend DHD 500-304 Thermostat Housing to Heater Core Fitting, when doing a delete. If you have a large alternator, you may have to trim the battery lug on the back of the alternator or rotate the rear half of alternator.
Note: Some modifications to the fuel return line will be needed.
2004-2005 LLY Duramax Diesel
These components have been designed and are intended for closed course competition only! It becomes the sole responsibility of the customer to ensure that the use of their vehicle and items purchased comply with federal, state, and local regulations. Performance products are legal only for sanctioned closed course racing vehicles, which may never be used on a public highway. Customer assumes all risks and expenses relating to unlawful vehicle operation on public roads. By purchasing this product, you have agreed not to hold DHD LLC liable for unlawful vehicle operation.