Hey,

Just wondering if it really is worth changing the stock air filter with a K&N or other brand Spectre?

Does it change the "sound" all that much?

I thought I read somewhere that these high flow filters allow more dirt than do the stock air filters?

There are the ones I found at autozone...

AutoZone.com | | Air Filter | K&N AIR FILTER[]

AutoZone.com | | Air Filter - Performance | AIR FLTR IMPALA - SS[]

Thanks as always!

They are if you have supporting mods that require more air flow. Personally I dont trust their HP added claims. Yes even a stock engine will breathe a little better with a K&N. Worth the cost? I guess we all different standards as to little gains vs cost.

If your really going to in crease your flow, then ya, it'* worth getting. A good idea to have a cold air box with it though. Otherwise your pulling in hot engine bay air.

Do they let more "dirt" through than the original stock air filter?

Do they add a different "sound"?

The K&N I am referring to is just the square replacement one...

The square drop in type are just a replacement for the stock filter. Not much difference. If you gut the air box the sound will be louder from the supercharger.

Do they let more "dirt" through than the original stock air filter?

As far as I know they do not.

According to K&N they do not. They use an oil base filter media to trap dirt. The real selling point is they are considered to be lifetime filters and aover the course of the life of your car, you can save a few bucks vs. the cost of replacing paper filters.

This discussion is still leaving the original thought on the sidelines, "Can a K&N filter deliver HP to a stock engine to justify it'* cost." It has been avoided since I joined this club. Can even a gutted airbox deliver measurable gain on a stock motor on it'* own merit. I seriously doubt it. In my opinion it'* a fallacy brought on by making it seem like you have actually done something. I have run my GXP WOT with out any restriction whatsoever against the MAF and dont see any difference. And why I leave my stock Airbox intact and looking original and sharp. It is something to do IF you have supporting mods that require it. It itself is not a supporting Mod.

I agree wit u venom, the filter definitely doesnt do much by itself, but i think it helps other mods reach there full potential. but again the key is you have to have OTHER MODS. LOL