Originally Posted by camaross305
just do a drop in filter 85$ and only about 2 less hp than the gruppe M...awesome sound to totally changes the intake sounds. Car sounds much meaner
I highly agree with Camaross... If i am not mistaken, BMC Airfilters have a nice drop in system that is worth looking at. Alternatively there is itg or afe that have a pretty nice free flow drop in media.
I have to admit, the Gruppe M is a lil steep in price but i suppose you have to justify if you are going to keep the car for a long time (i.e. 5yrs -7yrs). In my case I've always wanted an M3 from the E36 - E46, but i never got the chance until the E92 coupe came along. So yea thats how i justified.
Either ways bud, I am sure the 3 filters that I mentioned do a pretty good job.
Hope you find my recommendations helpful.