gDMJoe

You will/would notice that the air intake snorkel of the airbox is LARGE and opens to the fender well behind/above the fender's splash apron.

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2012-FX4

Thanks ...

Hobzit

lol, i sense the mild disappointment in your responses 2012-FX4. Im by no means a gear head, however most aftermarket CAI in general do not add that much power, just my opinion on what Ive experienced and read up on. If CAI were under 100 bucks or even under 200 then Id instantly snag one up on everything I drive, but these days the prices are pretty high for the "proven" gains that the companies claim. Everyone's butt dyno reads differently, its always more power, more torque and better MPG for the person who spent the money on the upgrade, I know im guilty of thinking a full titanium system for my bike made it one of the fasted bikes on the planet lol. 1000+ for the system plus a tune and I achieved a ear shattering tone and a lighter wallet, but i didnt didnt get a faster lap time.... Im new to Ford pick ups as well but I agree that a tune on a stock 5.0 alone seems to make a significant difference (not by experience though) read up on the SCT x3 tuner on 5startuning.com they explain what they are actually changing with their tunes. Pretty interesting. They also claim a "no foot print" on the ECU when removing the tune for warranty repairs. You can also email or PM them for direct answers, they have responded to mine.

As far as oiled air filters, Ive never had a gunked up MAF on any of my bikes, cars or trucks with K&N's (not saying it isnt possible) but i think most cases of dirty MAFs are from over oiling the filter when you recharge it... literally just my opinion and little experience, not trying to start a fight.

Either way, I hope you find some tasty mods for your truck that will make you happy!

STX TED

Buy one anyway. They look good and it removes all that clutter under your hood. You might gain a pony or two.
I am still in belief that more air in and more air out of any engine increases horsepower and torque. Run a true dual exhaust and a CAI. After about 15 engine startups you computer will adjust accordingly. I have ran K&N filters for years in my cars, trucks, and motorcycles with never an issue with the MAF's and have seen proven gains from them from dynos. Not a lot but still gains.

Your call and your money. Do what you feel is right.

Kytann

Bolding added by me for emphasis

Stock Airbox

So does the Bully Dog intake suck in air from the stock Snorkel. The one that opens into the fender well?

Reason I ask is my old Toyota Tacoma had the same design, where the top was closed and the airbox opened to the fenderwell behind the splash apron. And that did NOT help keep the water out.

In fact, i once sucked water into the intake of the truck because it opened onto the fenderwell. Driving through deep city flooding and it sucked the splashing water right up into the airbox. My guess is water was pulled up over the top of the tire, and down past the intake that way. And yes, I was really going too fast for a water crossing. If I had the top of the airbox open I would've been fine, because it really wasn't that deep, maybe bumper deep. And yes, it screwed up alot of things within that motor.

So from my experience, closing off the top of the intake doesn't keep water out (unless you mean rain). It more likely lets more water in.

And as far as rain, on my Harley I run an oiled filter all of the time, sitting right on the side of the motor exposed to the elements. The rain hitting it has never been an issue, even in the heaviest frog strangler downpours. So rain with an oiled filter really isn't a concern.

high_lander

Waiting for my Roush to show, should be here today. I like the Roush Products, and the warranty is pretty decent. They also have excellent CS. I am also adding the 5.0 intake cover and coil covers, so getting the cluttered air intake tube out of the is nice. It also dresses up the engine compartment.

Pride of ownership and all...

high_lander

Got the intake in tonight, boy that sucker is loud. Louder than the AF1 on my 05 5.4!

Kytann

I'd like to see pictures when you have it all installed

sullyman

Second on the pics. Post them up when done.

mechanicboy

It primarily does but it also pulls from the front of the box. For best performance they recommend pulling back the rubberish shield by the radiator to allow more cool air to the front of the box. If you look at pictures of the intake there's a hump on the front where this additional air is pulled from.

I have only had one problem with oiled filters and that was on my(not mine at the time) 92' Lincoln town car with the 4.6. It contaminated the MAF and we just cleaned it with MAF sensor cleaner and it ran better than ever.

All the used vehicles I buy that have a MAF sensor one of the first things I do as a tune-up is clean the MAF sensor. It should be regular maintenance. I'm probably going to clean the one on my 5.0 at the next oil change(20k miles).