More Horsepower and Torque for 2003-2008 Dodge Ram 1500 Thanks to a K&N Oil-Free Air Intake

K&N 71-1533 Blackhwak intake for 2003-2007 Dodge Rams

All Blackhawk Induction Air Intake Systems come fitted with an exclusive engraved plate

If you're an owner of a 2003 through 2008 Dodge Ram 1500 equipped with the 5.7-liter Hemi engine, you probably know well that your engine produces 345 horsepower. You probably also know that for 2009 the 5.7 L Hemi was upgraded to produce 390 horsepower, 45 more horses than your truck.

If you'd like to make up some of that horsepower, K&N has just what you're looking for. It's the K&N 71-1533 Blackhawk cold air intake system and it adds an estimated 9.62 rear wheel horsepower to your 2003 - 2008 5.7-liter Hemi-powered Dodge Ram 1500.

That's not to say that the first generation 5.7-liter Hemi isn't a remarkable engine. While not a "true" Hemi like its predecessors from the 1950s and 1960s, its combustion chamber is reminiscent of a Hemi-based NHRA Top Fuel cylinder head, both of which have twin spark plugs. The Chrysler engineers who developed the first of the new generation of Hemi engines even invited the input of the engineers who designed the 426ci "Elephant" Hemi engine in the 1960s.

Some features of the 5.7-liter Hemi, code named Eagle, are a deep-skirted cast iron block, four bolts per main bearing (two installed vertically, two horizontally). The cast eutectic slipper-style pistons are light, as are the connecting rods which don't require a balance pad. The cylinder heads are cast from aluminum, and the intake manifold is molded of high-strength plastic, for both weight reduction as well as a smoother surface for better airflow. All up, the 5.7-liter Hemi weighs 56 pounds less than the 5.9-liter engine it replaced.

While the original 5.7-liter Hemi is a great engine, you can make up some of the horsepower difference with 2009+ models by installing a K&N Blackhawk performance intake kit which adds horsepower and acceleration to your 5.7-liter Hemi, providing an increase of up to 50% incremental air flow to the engine.

K&N 71-1533 Blackhwak intake installed on 2007 Dodge Ram

The K&N 71-1533 Blackhawk Induction Air Intake System blends well under the hood of a RAM 1500

This is possible because the low restriction air intake allows your engine to breathe more deeply than it would from the OEM air intake. More air means more power and acceleration. This K&N Blackhawk Induction Air Intake System comes with black components including the K&N high-flow air filter and heat shield. An engraved K&N logo is welded to the attractive textured black powder-coated tube for a clean, high-performance look. The intake tube features fittings for the factory inlet air temperature sensor and crankcase vent hose.

Key to the performance increase is the oversized conical air filter manufactured from K&N's DryFlow oil-free non-woven synthetic media. This type of construction not only allows for increased air flow but also offers excellent filtration characteristics to ensure a long engine life. Each design is verified through K&N's in-house filtration testing lab, which adheres to ISO 5011 standards, ensuring that K&N filters provide high airflow without giving up engine protection.

Best of all, the K&N Blackhawk Induction Air Intake System can be installed in 90 minutes or less with simple hand tools. And once you've installed your K&N filter you've eliminated the need to buy another air filter for the life of your Dodge Ram 1500. The only maintenance is a service you can do yourself in no time at all. At intervals of 100,000 miles (depending upon your driving conditions) by using the K&N synthetic air filter cleaner K&N 99-0624 you can easily clean your Blackhawk air filter, preparing it for 100,000 more miles of driving. Your one K&N air filter is designed to last for the lifetime of your vehicle, which K&N guarantees will perform for up to 10 years or 1,000,000 miles without requiring replacement. For full details visit the K&N Million Mile Limited Warranty.

Visit the Dodge Ram 1500 Air Intakes page for all K&N intake systems designed for Ram 1500 models.


The 71-1533 fits the following vehicles: 2008 DODGE RAM 1500 PICKUP 5.7L V8
2007 DODGE RAM 1500 PICKUP 5.7L V8
2006 DODGE RAM 1500 PICKUP 5.7L V8
2005 DODGE RAM 1500 PICKUP 5.7L V8
2004 DODGE RAM 1500 PICKUP 5.7L V8
2003 DODGE RAM 1500 PICKUP 5.7L V8

Not legal for sale or use on any pollution controlled motor vehicle in California or states adopting California emission procedures. See for CARB status on each part for a specific vehicle.