Max Gain of 17 HP & 39 Ft-lbs of Torque @ 2100 RPM!

For maximum horsepower and torque gains, choose an aFe STAGE 2 Cold Air Intake System. Huge, high-flow conical air filters in three different filter media are the first step to increased airflow to the engine. These intake systems replace the entire air box and intake tract and give the largest performance gains of any aFe intake system. Powder-coated steel heat shields or durable molded plastic air boxes keep hot air out and keep fresh, cool air flowing to the filter.

Click here to see aFe’s New Product Announcement Sheet.

The improvement in air flow and air temperature of the Stage 2 intake leads to average horsepower gains of 20-40 horsepower and 35-60 lbs. x ft. of torque! The sound is nice and throaty and a definite improvement in engine noise. You’ll love the mean growl the open element provides.

A STAGE 2 AFE Cold Air Intake System has a massive air filter element which is exposed or only partially covered. It comes with a one-piece steel heat shield / air box. Installation time is 30-60 minutes and requires removal of the stock air box and intake tract.

Enclosed in a durable 16 gauge, powder-coated steel heat shield, this air intake system features your choice of aFe’s three premium filters. All three filters are constructed for long life and multiple cleaning cycles. To see more detailed information on these filters so you can pick the one that’s right for you, click on the links below.

The Pro Dry S filter is a washable and reusable oil free filter made from a synthetic media. It features deep open pleats for a longer service cycle. For maximum convenience with no filter re-oiling, choose the Pro Dry S filter from aFe.

If you’re looking for maximum performance with maximum airflow, the Pro 5R is the filter for you. With deep open pleats for a maximum service life, this filter features a washable and reusable oiled cotton gauze media that makes this a great choice for street racing and diesel towing applications.

The flagship filter media in the aFe lineup is their highly anticipated Pro Guard 7. Built with seven layers of progressively finer oiled cotton gauze and synthetic material, The Pro Guard 7 offers the highest filtration efficiency and maximum protection. Designed specifically for the high performance needs of today’s diesel off-road enthusiast.

AFE51-10612, AFE54-10612, AFE75-10612 Stage 2 Cold Air Intake Systems will fit:

GM DURAMAX TRUCKS 2004.5 – 2005 LLY

Click here to see aFe’s New Product Announcement Sheet.

Advanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in April, 1999, aFe was created to address an obvious need in the automotive aftermarket industry: a lack of choice for a high performance aftermarket air filter.

Comprised of a team of engineers, machinists, production and sales people with a strong belief in the products they design, aFe’s team has years of experience in their respective positions and together work to ensure that they have the best products on the market. Rather than just to be another vendor that offered air filters, they chose to pay attention to those finer details that set an aFe product apart from the competition.

Links:

• Product Installation Instructions

aFe Warranty

aFe OE replacement filters are warranted against manufacturer defects for as long as you own the vehicle and it is properly maintained using our filter cleaning kit. Our universal clamp on air filters and air intake kits are warranted against manufacturer defects for 2 years. Our racing filters are warranted against manufacturer defects for 1 year. All warranty is contingent on proper installation and proper maintenance using our restore kit. All other aFe products such as our exhaust systems, intake manifolds and intercoolers have a 2-year warranty.

Manufacturer Contact Info:

951-493-7100

aFe Power
252 Granite Street
Corona, CA 92879