The Injen SP Series Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a Safe A/F Ratio. The Injen SP Series Intake System does not limit itself to just a Cold Air System or Short Ram System. The MR Technology process has its effects on both types. The Injen SP Series Intake is The World’s First Tuned Intake System
OH YES !
Just installed on my SCION TC 2011. It makes a big difference.
Not too loud, but a very nice sound when you accelerate, just what the car was missing, before it was a bit dull !
As for the installation.It went very well, did not even remove the bumper, just the light socket.There are a few videos on YOUTUBE.