Ok, I'm a firm believer that the K&N FIPK system will boost power, gas mileage, and create a nice sound, But I've heard from multiple sources, that the filter itself can sometimes let in particles of dust, water, etc.

I'd love to put one on my '02 F-150 and I already have the Bassani Cat-Back exhaust and I think it might be the next upgrade to consider. However, I've heard somethings that make me question their worth...

My sister had an AUDI A4 with the FIPK kit and it began having idle problems. after taking it to a mechanic, she was told that the MAF sensor was dirty. The mechanic blamed 100% of the problem to K&N. He stated that even when oiled and clean, the filter can let in particles that foul sensors and get right into the engine. Other people I've talked to have shared similar experiences and it really makes me wonder.

Any HONEST feedback ;-) ???

 

Hi.

I don't think this is a K&N-specific issue.

Any oiled filter, if over-oiled, can contaminate the MAF.

If you live/drive in extremely dusty conditions most of the time, you need to keep on top of the filter maintenance religiously, and yes perhaps some stuff will squeak by anyway - it's not an infinitely fine media (none of them are).

None of these will let water in unless you submerge the intake. All of them will trap larger particles.

Some models/brands also offer a pre-filter (another layer you add on top of the filter itself), to keep out spooge.

Best practice is to clean the MAF annually - or as required using CRC MAF cleaner or equivalent (not brake cleaner). There are several threads that describe this. And follow the manufacture's oiling procedure.

There are also many posts either or w.r.t these type of filters and the poster's experiences.

And yes, it's one of the fave targets for Service Departments, who generally frown upon aftermarket intakes in general.

If it still concerns you, consider an oiless alternative - Outlaw, AEM, etc. Or stay stock.

Hope this helps.

Cheers
Bubba

 

I personally don't believe in the K&N brand. With my experience of K&N on streetbikes, that is the worst thing you can do. It runs extremely lean, and you actually lose power versus the stock element. Back to trucks though, you are paying for the name. You can find a better system from another manufacturer for the same price. Also with how big of a campany they are, why can't they seem to get all their systems CARB aproved????? Or even in the process of it???? Sounds like laziness to me. Personally I don't think they go the distance to make a quality product. I would steer clear.

 

hmmm...those are some things to think about.
Am I crazy to not add an intake to go with my cat-back exhaust? It seems like i'm "sipping through a straw, and crappin' through a fire hose." thanks!