Anyone try one? Little pricey at $275 (CDA85-150) http://www.bmcairfilters.com/

13b NA streetport, Microtech LT10, Exhaust - Mazdaspeed header, ISC collector, 3" pipe, Intake - 3.5" AWR mandrel pipe from TB to _____?

Trying to figure out what to do for an air filter. Right side turn signal and FTP are removed and no headlights so there is the source for air. I had a home made box before with a cone filter before but am sure that's not the best setup.

Also considering AWR box that takes a 10x10 filter.

Suggestions?