Review on Mishimoto Performance Air Intake for Subaru WRX 2015-2018 Silver - MMAI-WRX-15BP by Eric Carr

This inlet is amazing. I would like to give 4 stars for the reduction in consumption per gallon, but this has nothing to do with the real system, so I cannot reduce consumption because of it. The psychological aspect of the MPG drop comes from just hearing the air intake sucking in air (acceptably loud) and what is now a working/audible exhaust valve and wanting to keep hearing those sounds. Along with all that new rumble, which sounds like it's headed for the passenger air conditioning vents, the turbo seems to rev a little faster (more comfortable boost) so you'll have to shift a little earlier to save on the MPG you had previously . That being said, this thing is amazing in many ways and I'm hoping to tune it with the upcoming exhaust pack.