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Discussion Starter · #1 ·
I have a 05 and the stacks are just round rings. I took the old ones out and replaced them with the new ones. They just dont seem as sturdy...I mean theres a little lip for them to sit in those holes but im worried that there going to come loose.
Also, if im buying a $100 filter why is it that I have to cut off the rubber to make it fit???
 

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Discussion Starter · #3 ·
How did u make it fit??? The directions said something about cutting the dotted lines....FACK.
 

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I thought the same thing. You have to cut the tab that holds the gasket to the main body of the filter. I guess it is for shipping or while they are molding it. If it doesn't fit, make sure you take out the o-ring that is on the air box. The K&N is mean to take the place of the o-ring.

Now what are velocity stacks and how do they help and do I need them? I put in a K&N a while ago and I have a PCIII on the way.
 

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Discussion Starter · #7 ·
Well I still think its rediculous that for $100 air filter I need to start cutting off thins to make it fit. Bc I cut too much now and there's openings inbetween the filter and airbox...so therefore I'm going bmc
 

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Discussion Starter · #11 ·
I put in those two things and I def noticed a difference. I only took it around the block but it was def more responsive. I think its more bc of the new filter. I'm still iffy on the velocity stacks and how they sit...just doesn't seem sturdy.
 

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Let us know how it works out for you once you take it out and really get on it. I heard that a filter and stacks combination gives you a lot of bang for your buck. Are you running all 4 velocity stacks or just two outter ones? I hear running only two stacks toward the outside holes in the airbox gives you better performance for street riding. Let us know if you could.
 

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i just put in a bmc race filter last week i could not get it to fit right, i pulled out the o ring and it still didnt fit right i screwed with it for like a hour could not figure it out. well i didnt relize that u had to pull out the whole plate that the factory o ring sits in. i thought this air filter was a big peice of shit at first, but after removing that plate it fit perfact...:)
 

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Discussion Starter · #15 ·
Once I take it for a real run ill def let you guys know. As for taking it around the block, I definitely felt that it was more responsive. Its hard to say if they made a difference because i put them in with the air filter. But the combination of both definitely made some improvements.
Now I'm waiting on the bmc filter. And OH YEA I emailed K&N and gave them a piece of my mind about cutting the filter...Ill let you know what happens.
 

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i just put in a bmc race filter last week i could not get it to fit right, i pulled out the o ring and it still didnt fit right i screwed with it for like a hour could not figure it out. well i didnt relize that u had to pull out the whole plate that the factory o ring sits in. i thought this air filter was a big peice of shit at first, but after removing that plate it fit perfact...:)
lol, i hear that alot.
 

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Once I take it for a real run ill def let you guys know. As for taking it around the block, I definitely felt that it was more responsive. Its hard to say if they made a difference because i put them in with the air filter. But the combination of both definitely made some improvements.
Now I'm waiting on the bmc filter. And OH YEA I emailed K&N and gave them a piece of my mind about cutting the filter...Ill let you know what happens.
no "real run" in 2 months ? :lmao
 
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