Originally Posted by drex 10983
what are the noticeable affects of the k&n filter? sound(louder oem bov), performance??
Stock 06 WRX on dyno!!
I put my 06 WRX on a mustang dyno for the first time last night. You will see the two pulls I did, and how the K&N affects the performance at various RPM's. I dont think you can get more real life proof of what a K&N filter does than what I did last night.
BTW, I have my intake silencer removed, and I noticed that taking the silencer off made more of a noticeable sound differnce than adding the K&N filter. If you are driving on a cool night when the air is dense, then talk about hearing your BOV whoosh everytime you shift
Hope this helps you