Hi again,
Does anyone know for sure or "Have a Gut Feel" whether or not the aftermarket air filters such as K & N really do anything .?? All sorts of claims are made but I dont know anyone personally that actually has one.
The application would be on a Silverado with the 4.8l engine,Auto Transmission , 1/2 ton PU
Thanks for your input,
Cheers,
Boatnut
When a foam air cleaner like K and N is perfectly clean it does flow a little easier than a paper element. With a stock airbox, however, the difference in hp numbers is going to be virtually moot. Also you must remember that k and n filters don't filter as well as the OEM paper elements.