It took 5min to install, great upgrade! turbo spools noticably faster, power is also noticably increased (8hp?) The best part is the sound! (aside from the performance gains. You can hear the turbo spool! then when you release the geas the blow off valve sounds nice and crisp even on my stock bov. Fit was perfect. The mas adapter is made out of one peice of molded aluminum with a quite large opening that has walls that angle in so as to direct airflow into the honeycombs. The filter is a ram air type k&n style with a chrome open filter element top with a 4.5 in diameter opening and clamp. BUY THE KIT! A universal 3in filter wont work on the adapter! Looks great sounds great, perrforms great and was less than $50 shipped! Their indiglos are cheap and work well also.