What exactly is the purpose of the charcoal filter? and does removing it have any negative effect at all?

 

carcoal canister for the engine emission controlls?
or the interior cabin air filter

removeing any smog items will cause you to fail state insp
removeing the interior filter will cause you to inhale the
garbage floating in the air wait a year then change your
cabin filter then you will realy see what your not breathing
YUCK!!

 

i thought the charcoal filter was the filter above the air filter, in the stock intake

 

you have one there and on your gas line for emissions