stratman1954

Any noticeable improvement?

AkaSigFreak

I have read mixed results- some proving NO improvement in performance from the drop-in filters.
I have the K&N on my BMS Intake and when I switched back to the OEM airbox- I missed the pull and the sound. There is a big difference in the sound- definitely more aggressive sounding.

Knightmare69

Same here, had the BMS with K&N Cone, then swapped to a smaller cone due to rubbing issues then switched back to a K&N panel filter as the cone filter was getting too much heatsoak. It pulls the same as a CLEAN paper filter but it's when the paper filter gets dirty that the K&N shines so to speak. It'll last longer per cleaning cycle compared to the paper filter.

Supposedly better mileage but I'm a lead foot so it's a moot point for me, pulls better than paper filter in the high RPM's used on the highway.

Someone has suggested BMC panel filters as the DTM cars use those but those are also cotton oiled filters. I'd like to try a foam filter eventually but not in any rush.

pranavf01

Any reviews on this one

snowmuch

Ive been using KN since January. The car does feel faster due to increase in sound. (I doubt its actually faster) Im liking it so far.

Knightmare69

That's the replacement panel filter, exactly what I reviewed in my post. Did you read it?

W204Man

I did not notice any sound or performance increase but I think it helped my mpg a little.

pranavf01

sorry, yea i read it, but later when i saw this on amazon i forgot you were talking about the same one.

pranavf01

Do you think it will have better sound because i have a muffler delete?

Knightmare69

Truthfully, no. Before we installed my custom muffler we had the entire exhaust from the downpipe off and I was revving it on the lift. I asked my friend what he thought of the sound from outside and he actually told me he didn't know I was revving the car. The OEM intake box muffles the intake sound quite well.

chris5949

I don't think you'll feel any different unless on a dyno... I buy STP $30 a pair

Devastator187

I just installed mine a few weeks ago, bought a pair at Autozone for $87. Just last week, my check engine light came on. Does it have anything to do with the filter?

Knightmare69

You'd have to pull the code to see what it is, but was your K&N packaging oily when you got it? I noticed on some of the recent K&N inventory, seems to be more oil than usual. It's possible you got oil on the MAF.

Uncfan1976

I installed k&n on mine. Light came on and took to dealership. MAFs was bad they said.. Drove around couple more days and light disappeared. Prob little oil got on there but either burned or worked its way off.. I like the sound I get not sure of mpg improvements as I am heavy footed

Devastator187

No, it was pretty dry. I'll prob have it reset and drive around a little bit and see if it dries up.

gwi42

These filters do nothing at all they are just a waste of money. You can't take more air in if you can't get rid of it faster.

CraigRichard

You will never get the money you spend on the filters back through fuel savings...power is negligable. The only upside is less maintenance, as long as you dont kill your MAF, you'll change your filters less.

lrutt

In real world street driving, no, no advantage over clean paper. And seriously, how many of these cars will have a seriously dirty air filter.

It's common known fact they do pass more dirt through. If you were to do an oil analysis you will find elevated silica content if you are in a moderately dirty region.

You just perceive and increase in performance because of the sound. You have to be in the very upper RPM's to realize any minute gain, which you rarely see.

acr2001

The surface area of the filters in these cars is pretty huge. This is another good reason that I wouldn't expect any gain from the K&N - just a risk of fouling the MAF and getting more dirt into the engine.