I have a 07 STi, and I have the COBB Tuning Short Ram SF Intake System installed.
COBB Tuning Short Ram SF Intake System Subaru WRX / STI / FXT 2002-2007 at RallySportDirect.com
I was wondering when does the Intake need replacing, how often should this be done? Mine is a bit dirty, but not sure what should call for a replacement?
Anything I should be on the lookout for?