No complaints here. We've had it for a year and a half now with no problems. Only installation problem (more of an annoyance, than a problem) was putting the black rubber trim on the top of the heat shield. It was just a pain to get that on. Otherwise, installation is a cinch. Just make sure you get a tune. That one requires a tune, as do most. You'll get the most out of it if you get a tune from Bamachips or Brenspeed. For what it's worth, the most popular combo out there is the JLT or C&L intake and SCT XCal2.