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      07-15-2013, 09:16 AM   #7
DUI Elite
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Drives: 06 SGM E90, 15 BSM E84
Join Date: Jan 2011
Location: Chicago, IL

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Originally Posted by DSC_OFF View Post
You could probably get the same improve in throttle response by just improving your filter more frequently lol.
I'm referring to the charcoal filter delete only lol. I clean the K&N Drop-In twice a year.

Definitely don't feel like it was a waste to me, and I'm a skeptic too.

and OP, I would check the connection on the back of your airbox. Your mpg's shouldn't have gone down.

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