Stock.

 

Yup:thumbup

 

stock

 

I have no issues with my K&N

 

stock

 

stock

 

I bought the BMC because it had "race" on it.. I know call me a sucker for names. But so far never had any problems with it. Never bothered to dyno before or after the filter change. Just something I didnt care much about.

Although that had to be almost 4 years ago.. Maybe I should pick up a new stock one due to the age on the BMC.

 

As everyone said the stock is really good.

Seems most guys go with the BMC when they go aftermarket... mostly because of all the press and word of mouth.

Another bonus of course is they are washable, so if you plan on keeping your bike for a while, it will save you money in the long run.

With RAM Air bikes these days, you get a lot more crap in your airfilter then the older NON-Ram Air bikes.

So, washable filter, that MAY.. Flow a little better is the main reason for someone purchasing a BMC Filter, or similar.

.

 

As everyone said the stock is really good.

Seems most guys go with the BMC when they go aftermarket... mostly because of all the press and word of mouth.

Another bonus of course is they are washable, so if you plan on keeping your bike for a while, it will save you money in the long run.

With RAM Air bikes these days, you get a lot more crap in your airfilter then the older NON-Ram Air bikes.

So, washable filter, that MAY.. Flow a little better is the main reason for someone purchasing a BMC Filter, or similar.

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Thank you very much! This makes sense and is just the answer I was looking to get.

 

K&N's are terrible filters. Sure they breathe a lot, but they also don't filter worth a shit.

 

Stock

 

I've got the K&N in mine...no issues so far.

 

Stock filter is of the highest quality. Only filter that prduces more HP is the BMC Race filter. I have seen almost 1 HP over 7,000 RPM's vs. stock filter. GYT-R and K&N have rubber frames. I've seen both of them have cracks in the rubber right through to the filter media, right out of the box. This will allow more debris past vs. the factory filter or the BMC filters. The BMC filters have a precision molded plastic frame that fits very well and is not susceptible to tearing like the rubber ones. The BMC's are also cleanable, so you can save some money with long term use. Beware though, the BMC Race filter does not filter as well as stock, meaning that you will have to check and clean more often. They also warn that you may have to re-map/re-jet with the Race filter. BMC makes a "STREET" version that does not require re-tuning and filters smaller particles more effeciently.

 

STOCK

it's a bike, not a honda civic

i have a bmc street because i log a lot of miles

 

STOCK

it's a bike, not a honda civic

i have a bmc street because i log a lot of miles

In all actuality.. its the same principle. An engine that breathes better will make more horsepower. And in most cases the R1 makes more power than a Honda Civic to begin with. So better breathing would be as important or even more.

Exact same principle with the full exhaust on a sportbike & catback exhaust on a civic.

 

K&N's are for cars. BMC are more for bikes if you get one. I ordered a BMC from hardracing. Now just gotta wait until they get in stock.

 

K&N's are for cars. BMC are more for bikes if you get one. I ordered a BMC from hardracing. Now just gotta wait until they get in stock.

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No Kidding.. We just got to get BMC to SHIP THE DAMN 09 R1 Filters to the U.S. finally.

Come on BMC.... Your not re-inventing the wheel here guys...?? :whtfu:


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where is said log roc?

 

Also want to add that my bike had a slightly different intake growl with the BMC. Sounds a little bit meaner, little more agressive.

 

I run a Heppa filter yo :flex:

 

I personally think stock is the best filter.

I personally use a K&N.

 

BMC = washable. Better in my book.

 

Pipercross

 

I've never liked K&N simply because of the oil. They are practically forbidden on the E46 M3 since the oils screws with the intake sensor.

To me, oil gets in the way of the flow.

 

A over oiled filter will cause problems on any MAF or IAT sensor, not just M3's... Not a hard fix, just clean the sensor...

I have a BMC, it was in it when I got the bike. Who knows if it does anything, I'm going to clean it and run it.

 

Just my 02 cents..Not wanting to get in a pissin contest here, just throwing in some of my exp..

K&N makes a good filter. I have them on my cars/trucks. But when it comes to HI-Performance, the K&N doesnt filter down to a small enough micron partical. Normally for Street Use, K&N has no problems getting the job done. In offroad use, they are a big No-No. Ive been racing amateur motocross, and intake valves and head jobs go for a premium. Most guys refuse to use K&N because of this, and the dust particals it doesnt filter. I like their product, but not for Offroad use. I know we are talking street bikes and not offroad, but again, depending on how anal some guys are, this is enough to have them stick to stock, or find other options in filters.

In comparision to the BMC, I havent looked at what their Dust partical micron filtering size is, but I am sure its pretty close to being the same as K&N. With that said, my step-daughters dad in FL runs a Busa, and he has Dyno'ed both the K&N and the BMC. The BMC showed 3 1/2 hp difference at WOT. Obviously theres a lot more motor there, but still, I would think on our R1's we'd at least see 1-2hp difference over K&N.

If anyone has dyno results to post the difference, that would be awesome. Until then, Im just going off of a word of mouth on this.

 

Just to put a spanner in the works even when I agree with the more popular stock option.

The K&N & BMC don't tend to show any better output on the dyno over the OEM & the K&N in allot of cases you see a decrease, the BMC is the better of the 2. As said already the only reason to go aftermarket is you can obtain better flow for a longer period of time due to being able to wash them so when OEM filter say starts to get dirty your aftermarket can be washed so you can keep it free of grit when your not going to replace a OEM if just a little dirty.

The only filters I have noticed a very small improvement over OEM is DNA.

 

i wish i had seen this topic earlier. I thought K&N and BMC are basically the same and there's no difference. Am i really gonna see decrease of power as i ordered K&N instead of BMC?

maybe i try to cancel my order and then get BMC?

 

Do you plan to tune the bike with the air filter on it? If you don't, then you'll more than likely loose hp on both brands. If you do...can you really tell the difference between a half a horsepower?

 

IMO they are. Like someone stated eariler, the BMC has a plastic surround that fits snugly into the airbox. That is the only difference I see. They are both washable and use oil to filter dirt. I say buy what ever is cheaper, and just keep it clean...