BMC and K&N filter debate!

I just threw out the K&N filter that was in my bike. The guy at the shop said go home and hold it up to the light... I did and it looks like it's full of pin holes.

 

Ok so where's the part about BMC?

What is the debate?

 

The fact that you can see light through the K&N is what makes it a good filter. Don't believe everything people at shops tell you. K&N is an excellent filter and always has been.

Ray

 

I run them in all my cars.. they are good.

Ray

 

K&N makes a good product, but the fact that their customer service is terrible and the fact that many of their part #'s for Italian cars are incorrect is why I don't sell or use them.

 

The fact of the matter is, yes a high performance filter of any type will let more dirt into your engine. It is immpossible to get more air into an engine without allowing more dirt. It is the same with performance exhaust, you can't get more air out without getting more sound out, the key is to do it within reason. The main thing to remember is that most people that add these type of performance items to their car are the type of people that drive more "spirited" so to speak, and this type of driving will wear out parts far before some microscopic dirt particals will. Just my opinion. -C

 

Here is a thought. If there is such a serious problem with after market filters. Then why do we never hear of major issues or motors being damaged by dirt? I am not saying it does not happens but with so many people running after market filters it is hard to belive technology has not made them safe for cars.

Just my 2 cents

 

Good Point.

The other "bad" thing I've heard about the K&N filters is that very often, they are re-oiled improperly (i.e., too much oil), which can cause issues with MAF sensors, etc. The workaround is to just replace the filter with a new K&N filter (since these come pre-oiled). Kind of expensive to do, but not that outrageous when you consider the general costs of ferrari parts.

Dom

 

I think it simply depends where you live, Switzerland clean air, non dusty environment you can run what you like, both my K&N and BMC on my 996 TT and Stradale are fully deoiled and both cars go like a ROCKET vs OEM

 

I've torn down several motors that were run with no filters at all (just open air horns) and they were fine. I have used K&N for many years and always had good luck.

If you are running the Baja 1000, maybe K&N isn't the best choice, but for around town or on the track, it's fine. Just keep them clean and oil them more often if you think it's a major issue.

Anyway, my view is that it's a motor, not a clean room fabricating silicon wafers

Ray

 

I had another thought on this subject. Imagine whats going on with the oil, gas, and anyother liquid traveling through an engine. Do you think there isn't little particules of dirt in those? Just a thought.

 

I second the thought,.

 

Any input regarding power gains on a 360/430?

Not one person detailed what is to be gained with an upgraded filer.

Better throttle repsonse?
Better low end, mid range, high end?
Better gas mileage?

 

All of the above in some cars.
Some cars really do not gain much but the most common gain is better throttle response.

 

I had a low speed hesitation in my 360 until I replaced with a BMC.

It is now more responsive and that hesitation is gone.

 

I just installed the BMC filters a few miles ago but the car does feel more responsive. I doubt any noticeable hp gains that you could feel. I like the crispness of the throttle response. If there are any problems with the sensors I will post it.

 

Honestly the only way you will have problems with the MASS air or any intake part is when you re-oil the filter you do not allow it to dry completely. The instructions are quite clear on the K&N oil cleaner kit, let it dry for at least 6 hours on the bottle I have for re-oiling my K&N.

 

I have been told K and N doesn't make a replacement filter for a 360? SO?

 

Sorry for not clarifying the K&N filter is on my daily driver and my M3.

I was just trying to make the point that whether it is K&N or any other brand. You need to let the oil dry before you reinstall it into the car. That way you will not have any MASS air sensor issues. Hence reading the directions on the bottle which I know some of us do not do...