Air Intake ???

[wired1]

At what hp level does an intake become needed? and how are the drop in replacement filters like afe drop in vs say an s&b intake? I would think the drop in's would be better then the stock filter and easier to put back to stock if you needed to.
Air Filters Direct Fit Ford Trucks- 08-10 V8-6.4L (td) 10-10107 - aFe Power

[11SuperDutyKR]

I'm doubt just an aftermarket intake would void warranties as long as it's not throwing codes. I'm pretty sure the S&B won't display codes. I would think there is a big flow increase by upgrading from a drop in to an intake torque tube w/ aftermarket filter. As far as when to upgrade to aftermarket intake, I'd recommend as soon as you can afford it because any motor will run better with more air flow. But, it's prob. not NEEDED til you get above 210 or so.

[madman1234509]

Well my buddy was running his 175 tune for the first week he had his spartan with just an afe drop in and it pulled in sooo much air it was sucking in that thing that shows how dirty the filter is. Probably not good

[Raul@Stealth Automotive]

well if your running any kind of tuning i would say a full intake system would be needed.... S&B and AFE are the way to go...

[DSTRBD]

I wouldnt waste time with a stock replacement filter. If you are going to do it, do it right the first time and be done with it. Some say you dont need an intake unless you are running the higher tunes, but any tuned 6.4L will benefit with an aftermarket intake. You will notice quicker spool up as well as you increased power.