Installed with intake and exhaust replacement.
After changing to the later Spec. intake and exhaust (Funnel, Exhaust System), it was installed to compensate for the low power and thin fuel tone when opening the Axel.
The Body is surprisingly cheap for the price, and it feels plastic, like a toy that comes with a candy bar as an added bonus.
Harness and internal dials are solid, so I don't think there is a problem with performance, but I would like to see a little more exterior quality.
In the Instruction Manual, you will find a slightly denser version of Quantity:When I set it up, the torque feeling was clearly improved and I am satisfied with the later Spec.'s intake and exhaust (improved extraction) coupled with the pleasant extension.
Harness seems to share with VFR and there are two couplers, but the one without a line was correct.
I think that the range of correction is limited because it is the correction of only O2 feed back area, but I think that Light tuneLevel is enough because it is relatively cheap and easy to set up.
I would give it 4 stars because it seems to work on other cars if you just replace the Harness, so I would give it 4 stars in that regard.

