Have a later model diesel-powered pickup and need more power to haul and tow? One well accepted way to obtain greater horsepower and torque is to install a cold air intake system. As an added benefit these systems can enhance performance with the same or even improved fuel economy.
A cold air intake system reduces the temperature of intake air by capturing cooler air from outside, not from the hot engine compartment. Cold air is denser than warm, humid air so it contains more oxygen for better combustion.
Cold air intake systems also usually have larger diameter intakes compared to OEM (original equipment manufacturer) ones. Therefore, they can take in more air, again providing more oxygen for better combustion. Designing a direct airflow path and providing smoother interior surfaces help reduce air resistance for increased airflow.
These and other design features have been incorporated in a new line of cold air intakes developed by filter maker AMSOIL and air intake manufacturer Injen Technology. A key feature is Variable Induction Technology, an air induction system that fills the plenum with air, giving added power when needed.
The unit's Diesel Power Box uses a composite mix of glass-filled nylon and polypropylene materials for quieter operation. Unlike plastic components, they do not distort even at very high temperatures. A built-in velocity stack streamlines the air turbulence into the plenum air chamber by way of the multi-power induction system. The Power Box was designed for best cooling efficiency and the ability to resist high temperatures. A tapered plenum chamber reduces turbocharger lag.
The Injen/AMSOIL Diesel Air Intake Systems is made of aerospace alloy T6 aluminum with stainless steel clamps and tig-welded ports and brackets. They are dyno-tuned for peak performance. The direct bolt-in design makes installation quick and easy.
Since filtering is key to protecting and engine from damaging dust and dirt. These cold air intakes are equipped with AMSOIL's dry media Ea nanofiber technology air filters. Nanofiber technology is 99.53-percent efficient. The 360-degree accordion style AMSOIL Ea filter element provides 500-percent more surface area. AMSOIL Ea filters can be cleaned using a shop vac. A stainless steel pre-filter deflects larger debris to prevent premature build up of dirt.
The Injen/AMSOIL Power-Flow Diesel Air Intakes are available for the 6.6L Duramax V8 used in 2005-2007 Chevrolet and GMC trucks, the 5.9L Cummins Six installed in Dodge Ram 2500s and 3500s and the Ford PowerStroke V8 available in Ford F250, F350 and F450 trucks. Depending on the truck and driving conditions, horsepower increases can range from 8- to 15-percent with corresponding improvement is torque.