K&N filter WOW!


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Posted by N.East5'er on May 02, 2007 at 15:18:28 from from 68.13.202.171

I just in installed a new k&n filter on my 528i and i have noticed a really good gain of about 1 mpg and a little more pull from 2000rpm to 3000rpm and the cool whistle sound. has anybody else experienced this.


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