Lets in more air than OEM but also more dirt....that's why I still use my OEM filter box.!!

 

Plus too much oil on the filter damages O2 sensors

 

Dang ! Is it to late to switch back to the stock air filter ? Cause my Tacoma has had a K & N filter for the last 240000 miles.. lol....Zero oil..

 

To much oil covers MAF sensors. It causes all kinds of problems. They have burned up a lot of Chevy transmissions. The MAF quits working and runs the trans pressure low.

 

Us old school guys know about air flow from our high school days. I had a 1970 Chevy Impala with a 350. I flipped the air cleaner cover over because I couldn't afford one of those fancy chrome deals. Boy that induction noise sounded cool ripping around town, but holy crap......what happened to my car's top end??? My car could hit 120 on the highway once upon a time, but no more! Of course, I hadn't done any real performance mods to the car, so the increased air flow simply leaned it out and robbed power at WOT. Duh! When I figured it out and put the stock air cleaner back on, my car was quiet again, but at least it was back to being fast.

 

I remember those types of old school problems...Like taking your carb'd vehicle on a trip to the mountains....ran like crap! Thankfully fuel injection solved those types of issues. Now people can't figure out why they get worse MPG with high intake air flow. Duh, more air requires more fuel to keep the same ratios.

 

The K&N feeds the engine more air than it can make use of by having less filter material, then needs to be oiled to still do an adequate job of catching dirt.

I hated the drone and performance of the K&N FIPK on my old truck, then paid significantly more for a volant that had garbage fit and finish. Then the light bulb went off and I realized the best performing aftermarket intakes are closest in design to the stock system.

Never again.

 

Whats funny is that with all the info on the net and stories, people still fall for all that shit hype K&N puts out.

 

yeah, I wish I had thought of the aftermarket air filter concept...