I do agree that $600 is way too much for any Air Filter Setup...............................
BUT............................................... ............
The Engineering that went into the design of these $18.00 - $50.00 Air Filter Systems must have been done during Smoke Breaks in some third world countries shirt sweat shop!!!!
Here is an example of what I saw.....................
A version for a MOPAR V6 although NOT for a Crossfire.
http://cgi.ebay.com/ebaymotors/ws/eB...category=38634