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
Got this for my 2006 Acura RSX Type-S! Makes that K20 scream all through the power band. Very easy to intall, with very, very little fabrication to get the perfect fit.