A pain in the hiney to install, the mating surfaces weren't exactly true. I had to use a Dremel and a round brass dolly to finish the input side, the pipe was brought through the flange too far and did not mate up to the turbo's outlet. Can not tell any performance gain by the seat of the pants. Maybe you have to buy the catback to feel something, for $638. I have a K&N air filter in what appears to be a factory cold air intake, on my 2014 Juke NISMO RS, 6sp FWD.
2012 civic si injen exhaust
After selling my tsudo exhaust, (because it was extremely loud) I was looking for a new exhaust. I was debating between the injen axleback and the invidia q300. I had heard the q300 in person and felt it was too quiet. Online I found that the injen was supposed to he slightly louder so I got the injen. Once received I was impressed with the polished finish and quality of the piece. I installed it in ten minutes. At idle it has a deep tone. It sound great with little drone and is quiet on freeway