I am thinking about installing a K&N air intake system, but i have been told the once you install one there is a great possibility in the long run of getting dirt and dust inside your engine compared to the stock intake. Is this true?

Has anybody experienced any problems from an aftermarket intake system? Does K & N guarantee anything? I hope somebody can help, i look forward from hearing from somebody.

 

They don't filter quite as well as a stock filter, but it won't cause you any problems either. I run a cheap ebay K&N system. It is a real K&N filter though. The oil can build up a fine residue on your MAF and cause a small issue there, but it takes 5 min. to clean it too. I had to clean mine once here recently, but I had that system on there for 2 years too.

 

Be warned that unless you have some type of tune for CAI that the K&N system can fry your plugs. I put one on my 05 with 24K miles a little over a year ago with only a Superchips Flash Pac, no CAI tunes. It fried 6 out of 8 spark plugs and one coil (over $700 to fix) in less than 3K miles. On the K&N system like many others the MAF is repositioned on the intake tube and this makes the engine run lean.

I like the K&N products and the looks of the system but it sure didn't work out in my case.

Good Luck.

 

For any CAI, you get very minimal performance improvement without custom tunes. Additionally, with a 2004-2005, you run a very real risk of running lean, without a custom tune. Do the DMV mod in the HowTo section instead.

 

I have never had an issue with mine. Just make sure to clean and oil your filter with the kit from K&N atleast once per year. Sometimes clean it twice per year if you are driving in really dusty conditions.

 

You don't have a 3v emgine and don't run the risk of running lean. A huge difference.

 

2005 MAF:


2001 MAF:


"We can tune for different cold air intakes on 05+ Mustangs and 04+ F150s [mgd-insert] NOT just 2004 - ANY slot-style MAF truck !!! See the '+' sign? Get it right, once and for all, ok? [mgd-insert]. Any aftermarket intake that flows well and puts the slot-style MAF sensor into a larger less restrictive housing is going to REQUIRE a tune for the vehicle to run properly. Intakes that do not require a tune are often just as restrictive as stock and do not result in large power gains". - VMP Tuning

MGD

 

Oh ya, I forgot about the lean mixture with your year.

 

2009 5.4L 3V:

==>https://www.f150online.com/forums/20...ts-2009-a.html

It's simply irresponsible for a Very Senior Member to continue to obfuscate the facts - random, uncontrolled lean tendencies began with the 2004 3V's - and CONTINUE to the 2009+ trucks. It was NOT restricted to just 2004-2005 MY's.

And - CAI changes as related to MAF Transfer function effects by same are STILL very much an issue - REGARDLESS of MY.

This will be the last time I'll be pointing this out. I'm flat tired of doing so.

I. GIVE. UP. Clearly - Mods trump the general unwashed peons....

Yer on yer own folks. Call yer favourite tuner if you need clarification. VMP/PHP/TP.

Good luck.
MGD

 

I shortened the quote a bit but that is exactly the issue, by altering the area that surrounds the MAF sensor you will throw off the entire system. The change may not look very dramatic to your eye but to a highly sensitive sensor will.

Here is a small post that should help explain some of the issues.
http://forum.gopowerhungry.com/2004-...html#post43721

 

Firstly, it's ridiculous to think or say that Mods trump other members when it comes to knowledge on any subject on the boards. The only trump we have is when we have to control misconduct.

Secondly, it was my understanding, maybe incorrectly, but what I have understood is that the 2004-2005s were much leaner in their factory tunes. That by 2006, the factory tunes had been enriched so that thereafter, you COULD have one show a lean condition, but you were not almost assured of it as you were with the 2004. If I am wrong, tell me and I apologize for spreading incorrect info.

I will point out that since he has a 2005, I was at least correct in telling him he might run lean.

 

Honestly alot of this is a little over my head, just curious as to best way to increase fuel efficiency... good ol paper purolater filter or spending the cash for a cold air intake system.... but then I would have to go to someone who knows their stuff to have a 'tune' programmed to match the Cold air intake I get?

 

^ 1 simple answer. The Gotts intake mod.

 

If a CAI has any fuel economy benefit, it is so small as to not be noticable. It will add 6 to 8 hp without a custom tune and maybe 14 to 16 with a custom tune. It's graetest function is to clean up the engine bay.

 

Don't buy an intake for fuel economy gains. It will take you alot of miles to recoup the cost.

My average "highway cruising at 70 mph" fuel mileage on my 05 Supercrew was 17.5 mpg.

After installing the first generation EDGE, Flowmaster 50 SIDO exhaust, and the airaid jr intake with K&N filter, I again got 17.5.

Total the cost, and I never recouped that money.

With that said, I loved the performance, and sound of that truck.