I used the AEM intake OEM filter in the past. It purchased and try to see the use INJEN SP on this occasion, but the intake sound with the suction force of the surprisingly pleasing my ears. It is scheduled to be the dynamo test later, but expect large. I'm thinking that get a positive result. Difference after installation is to remove torque band. Power seems to be overflowing as it goes to the mid-to-late. Was a lot of trouble do I have to INJEN K & N or need.I recommend INJEN!