08WHITE4X4CREW

I need a new air filter for my 2012 3.5 ecoboost. What is the best to get for in the stock box? I would like something that will allow me to hear the turbos whistle more and make a little more noise under hood. I don't really want a whole new cold air intake.

STingray1300

CAIs are a colossal waste of money, especially on ecoboosts. The best (in every way) air filter is the OEM paper filter. K&Ns are pure junk, BTW.

Seriously, for air flow and filtering, nothing beats the OEM paper filter.

admlshake

I just got a fram at Walmart after I got my f150 in the spring. Seems to be working fine.

Wicked46

Get this one from AEM!

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

08WHITE4X4CREW

Thanks. What can help me get the turbos to whistle more and get more sound under hood?

Bravo3eco

Check out Green Filter... they make a very good filter that goes in the stock box. Supposed to be the best flowing on the market.

Boostking

If you want more whistle, you will need a CAI, but as mentioned you will not again anything other than noise. I have one, AFE, and have verified on the dyno that it did ZERO for performance. I do hear my turbos though.

Tothemax

Another vote for aem

08WHITE4X4CREW

Does the aem stock drop in make any more noise?

JWL9186

The AEM dry filter does add some noise. You can hear it sucking air with the windows up and radio on.