BMC vs K&N
#16
10-20-2008, 08:27 AM
Registered User
As with many of your posts, GREAT info, and good comment about people wanting to "buy something"... I think you're spot on there...
Mike
Mike
I also feel most "performance" air filters trade off filtration for extremely marginal (or no) improvement in engine output.
I feel people just WANT to buy SOMETHING that makes them feel good when they look under the hood. Heck, people will exchange a factory airbox that is designed to suck cooler air from outside the engine compartment for a cone system that sits in the hot air under the hood...these systems loose power compared to stock. But I am getting OT...
Here is a very interesting test:
http://duramax-diesel.com/spicer/index.htm
While K&N claims that are 'within 1%', when you compare say 99.9% to 98.9%, that "1%" can be TEN TIMES more particulates getting past!
For engines that are raced, and rebuilt regularly, who cares? Give me paper filters and I'll just replace them with every other oil change.
I feel people just WANT to buy SOMETHING that makes them feel good when they look under the hood. Heck, people will exchange a factory airbox that is designed to suck cooler air from outside the engine compartment for a cone system that sits in the hot air under the hood...these systems loose power compared to stock. But I am getting OT...
Here is a very interesting test:
http://duramax-diesel.com/spicer/index.htm
While K&N claims that are 'within 1%', when you compare say 99.9% to 98.9%, that "1%" can be TEN TIMES more particulates getting past!
For engines that are raced, and rebuilt regularly, who cares? Give me paper filters and I'll just replace them with every other oil change.
#17
10-20-2008, 12:26 PM
I had a K&N and it blew the maf straight away and caused the boost pressure regulator to throw an error putting the car into safe mode. Put original filter back in and everything ok again - Oh well you live and learn. I now run a BMC filter with no problems at all - but can you really feel a difference- no not really... don't believe the hype! The only time you feel a difference is when it causes something else to break!
#19
10-20-2008, 10:57 PM
Does the K&N really weigh that much? Your avatar photo shows the car's front wheels off the ground!! 
Last edited by ArcticSilver; 10-22-2008 at 12:19 AM.
Thread
Thread Starter
Forum
Replies
Last Post
sdg1871
991 Turbo
224
11-22-2015 07:27 PM
gadgetman
Automotive Parts & Accessories For Sale/Wanted
0
09-12-2015 05:40 PM
