Does the K $ N Filter work?
 

I did the mod where you take out the inner lineing and was debating on getting a K&N Filter today. Does this almost $50.00 filter make that much od a difference? Or should i wait until i changr the TB & Plenum.

Somewhere I read did a test with installing JUSt the tb/plenum with no other mods and they said there was actually like a 2hp decrease, but once they put in the k & n, they noticed a big difference. I guess you can think of it like having a bigger neck, but keeping the same sized mouth. A big neck helps nothing without a bigger mouth.

I heart my K&N FIPK. Needs to be cleaned though...

The way I look at it, it made me faster, of course, not by increased flow, but the weight loss from my wallet...:D Nah, I would say buy one if you plan to keep the car for a long time, cause you can just re oil it for a million miles.

I think they work pretty good... :)

Well, consider this. When you replace your factory air filter, you're spending about $15-20, so why not get the K&N. It pays for itself in two regular change intervals, and it's a better filter. That's the way I justified the $50 to my wife.

I got pinging from my k&n not trapping dirt correctly and getting on my MAF meter. Id go with fram air hog instead.

Over oiling is what causes MAF contamination.This can be cleaned off using spray electrical cleaner.Get the K&N,or SB filters also makes a good filter for about $10 bucks less.I have one from SB.

With k&n its a common problem regardless of over oiling, under oiling, or even just right.

I have a K&N Filter for the Mustang GT / Cobra with 7,000 miles if you want it. I'll sell it for $25 shipped.

my k&n is great and have not had a problem with it and have seen that it does flow better than oem filter