I'm thinking of getting a performance air filter for my 03 Cooper S, and i was just wondering if anyone has any ideas as to which one's are the best for the cooper s. I have used K&N before on other cars but did'nt know if there was anything else that could be better.
Thanks.

 

The JCW's is one of the best as it uses a flapper to open up at wide opeb throttle for best air intake

 

Where is the best place to get one from and any idea how much??

 

I picked mine up off ebay ... dealer has them as well

 

http://cgi.ebay.com/ebaymotors/Parts...1%7C240%3A1318

I picked mine up on a regular auction for around $120 shipped