Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

rickety · 03-31-2006, 07:25 AM

I had the K&N filter system on my 2500HD/Allison. Did not notice any difference, took it out and reinstalled the stock air filter and intake system.

The stock system actually flows more air to the engine than the KN system does.

the threads mentioned above will back this up.

03-31-2006, 07:25 AM	#6
rickety Montana Master Join Date: Oct 2005 Location: Caldwell Posts: 825 M.O.C. #4855	I had the K&N filter system on my 2500HD/Allison. Did not notice any difference, took it out and reinstalled the stock air filter and intake system. The stock system actually flows more air to the engine than the KN system does. the threads mentioned above will back this up.