cold air intakes
Senior User
Joined: Nov 2006
Posts: 148
Likes: 0
From: Prosser WA
I don't think so, but it also depends on the ford shop. Mine suggested not to change it. Besides, the stock (Donaldson) is good for up 500 rhp. You only really need to change it when you are pushing big numbers. Also, if you do decide to put in a new intake then its been said to stay away from K & N.
Moon
Moon
Elder User
Joined: Apr 2004
Posts: 890
Likes: 1
From: Douglas County, GA
A couple of different people have posted that when they took the truck in for a problem, they were told to take the truck home, re-install the stock air box, then bring the truck back for troubleshooting. In some cases, this makes perfect sense becuase the tech is relying on what different sensors are telling them while looking for the problem. With a non-stock air box, it can skew some of the readings to the point they are mis-leading.
As far as the warranty, who knows??? It all depends on what problems you have that need warranty work, the particular shop or technician you take it to, and what kind of day they are having.
Like dmalmgre said, some (I'm not saying all of them) after-market air boxes have been known to dust the turbo blades. The stock Donaldson airbox is perfectly good for up to 500 HP.
As far as the warranty, who knows??? It all depends on what problems you have that need warranty work, the particular shop or technician you take it to, and what kind of day they are having.
Like dmalmgre said, some (I'm not saying all of them) after-market air boxes have been known to dust the turbo blades. The stock Donaldson airbox is perfectly good for up to 500 HP.
Freshman User
Joined: Sep 2007
Posts: 40
Likes: 0
The 2005 f250 I just bought has a K&N aftermarket intake. Upon putting the truck up on the rack to inspect the underside, I asked on of the diesel mechanics about the filter and he told me that if it were his truck he would put factory back on it. He stated tha it would NOT void my warranty, but he just thought that factory filter would keep the engine much cleaner.
Posting Guru
Joined: Jul 2007
Posts: 1,233
Likes: 0
From: Las Vega$
depends on the dealer bro... just make sure you keep your stock one in case you ever need to go in for warranty work. especially if it's something engine/turbo related !!
they can and usually do put a note in the computer if they see aftermarket stuff, and even if you go to another dealer, the note will follow you around..
the stock one is good for much power though.
they can and usually do put a note in the computer if they see aftermarket stuff, and even if you go to another dealer, the note will follow you around..
the stock one is good for much power though.
