Better intake setup?

[steed281]

I have two intakes to choose from.

AFE Stage 2 Power MagnumForce with their Pro-Dry S filter.

Stock intake with Donaldson PowerCore P603577 filter.

Is the Donaldson filter the same as stock?

Which setup will give me the best fuel economy? Need to buy the filter either way but have the intakes.

If I do the AFE has anyone found any difference between having cover on and having the cover off?

[ebusa]

I just took off my AFE Stage II Magnum Force SI CAI and put on a stock unit!

I noticed smoother idle and feels better on take off. Also, it quieted down the turbo compressor whine "inside the cab noise" and I can now hear more of the whiste side.

The stock will filter/protect better, not sure about mph. I'm a believer of the stock intake after having an aftermarket on for several years. Should be faster to change the filter too, since you don't have to wash, wait to be dry, oil, the afe one.

oh, and having the cover off will just make noise and suck tons of hot engine heat.

[Evil Eye]

I also pulled off my aftermarket filter (S&B) and went back to stock. The good thing about stock is that it's a Donaldson filter and you don't have to worry about it. I was cleaning my S&B EVERY couple of weeks since it would get dirty so quickly. I didn't notice any substantial change by the seat-of-the-pants butt dyno.