Ok so I've had my cpe-intake for about year and half now, and i was wonder how often we should clean the filters. It seems to have got pretty dirty. On revolutionsix.com i saw a part for cleaning their filters available. Has anybody else tried this, or think it's a good idea to buy? It could be hurting the performance and engine right? Never cleaning it can't be that good! Anybody think about this to that has the intake?