had it ... worked great.... SAME MATERIAL as the injen, AEM, and any other "aircraft aluminum T6.." same filter as injen.... red dyed paper to look like KN..... AEM comes w/KN filter. but they are still good filters (the injen and ractive) i say go w/ the ractive if you want the best bang for the buck... go with the injen if you want the best looking one.... or the KN typhoon which is coming out... but thats even more pricey.
