aFe MagnumFORCE Intakes Stage-1 PDS AIS PDS BMW 540i (E39) 97-03 V8-4.4LMaximum performance within minutes is what this aFe Stage 1 cold air intake system delivers. Enclosed in a durable 16 gauge heat shield; a massive washable reusable; 360 deg. conical Pro 5R air filter increases airflow resulting in an additional 6 hp; and 7 lbs. ft torque. This intake system also features a unique 3 angle adaptor for increased air velocity. The Pro 5R air filter is constructed with 100 percent polyurethane for long life and multiple

the ATLAS turbo down-pipe is wrapped with thermal header tape to reduce EGT's even in the most extreme environments

The AEM 21-744C Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing

This muffler is constructed of either Aluminized steel or brushed finished 409 stainless steel and uses a straight through perforated core with heat resistant packing to reduce backpressure and maximize exhaust flow

Momentum HD intakes are designed with fewer parts for a quick and simple installation

Year Make Model Submodel 2004-2005 Chevrolet Silverado 2500 HD Base 2005-2006 Chevrolet Silverado 2500 HD LS 2005-2010 Chevrolet Silverado 2500 HD LT 2007-2010 Chevrolet Silverado 2500 HD LTZ 2006-2010 Chevrolet Silverado 2500 HD WT 2007 Chevrolet Silverado 2500 HD Classic LS 2007 Chevrolet Silverado 2500 HD Classic LT 2007 Chevrolet Silverado 2500 HD Classic WT 2004-2005 Chevrolet Silverado 3500 Base 2004-2006 Chevrolet Silverado 3500 LS 2004-2006 Chevrolet Silverado 3500 LT 2004

4L twin-turbo engine

The cone shaped AEM Dryflow air filters are made from an oil-free

The air filter is located in the original air box space which is designed to reduce intake air temperature and increase horsepower

This filter has a massive 5" round flange and is 8" tall with an inverted top and features our non-oiled Pro DRY S media

View the 21-848C vehicle applications to determine the legal status for each vehicle

This construction allows for a proper factory style fit with excellent filter strength

This media is best suited for street and light off-road use