Cold air intake
Diesel Wrench
Joined: Nov 2009
Posts: 629
Likes: 44
Well I had a cone filter and it was junk as well. I have had plenty of them before and I still run one on my drag car......no issues with any K&N until I put it on a boosted motor. That is my experience with them. On a N/A motor I have no issue with them but if you are making your own atmosphere I will never run one again on that motor.
Diesel Enthusiast
Joined: Feb 2009
Posts: 450
Likes: 18
From: Sheldon iowa
The Cone K&N let alot of dirt into my dads 05 and it as well is in very dusty conditions. So we put an S&B on it and there is a huge difference the S&B has not let any dirt in at all yet like the K&N did. S&B or BHAF is going on my truck after seeing what the K&N let in my dads i will not run one.
Diesel Wrench
Joined: Mar 2007
Posts: 908
Likes: 38
From: Blue Jay, Ca
.....ever see how much dirt a K&N will let through into your turbo. Sorry but a kitchen sponge will filter better than a K&N on a forced induction engine. Unless you are over 400hp the stock box is fine and actualy better than most of the heat soaking after market ones. Put an Amsoil Ea Drop in filter and you have a good set-up. The best filters pull air from the outside and are sealed under the hood.Scott
Diesel Fan
Joined: Jan 2010
Posts: 76
Likes: 2
From: Butte, MT
I love the AEM filters, and have one on my 12V (dropped EGTs 50* compared to K&N), but they aren't a sealed box. That's why I'm going with an S&B then getting an AEM for it when the filter needs to be changed.
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