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.