Hey all,

I just bought a 2005 XLT 4x4 with 19k miles. Knowing that the gas mileage would be pretty bad I did some searching around the net for modifications to help improve this. I didn't find this forum until a couple of days ago and have read a bunch of threads on CAI's. I purchased a K&N FIPK from autoanything and it should arrive today. My question is will I void my warranty if I install this intake? I still have 16k+ miles and / or 10 months left on the factory warranty.

Thanks

 

Two things to consider.
The filter needs oil to be it's most effective at filtering.
That oil can contaminate the mass air meter and cause secondary problems that the dealer will blame on the filter oil/assembly.

Don't expect any significant fuel mileage gains over stock because the stock filter flows enough air in (normal driving).
Lastly on some trucks after 04, an after market intake (may) lean out the air meter and generate codes to that effect.
Good luck.

 

Manufacturers can only (legally) deny warranty claims if the part failed as a result of the mod that you did.

Example #1: You install an aftermarket CAI. The CAI cause a severe lean condition, and burns up your motor. Ford would not cover that failure.

Example #2: You use/install a tuner (Edge, Superchips, Xcal, etc). A few months later, your tranny goes kaput. The dealer find out that you've been using a tuner (which also reprograms your tranny). They could legitimately refuse (or try) the cover the claim.

Example #3: You install a CAI. A week later, one of your front tie rods goes bad. Ford will still have to warranty that part, as it has nothing to do with the mod (CAI) that you installed.

 

if you have the 5.4, you can use any roush part, including supercharger, and it will not void your factpry warranty....as roush is owned(maybe not best word) by ford, so their parts are covered by your base 3/36 warranty.

i work at a dealership and i agree with the above post from bamorris.

 

US Code - Title 15, Chapter 50, Sections 2301-2312

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C))