I just installed HVS MR couple days. easy to install..not really improve for high range performance. only the audio sound much better and the mid range a little bit change. engine smoother than before..but don't expect gain more horse power. I will keep this until the gas milage usage confirmed..or you think another mod..I highly recommend STI performance filter..good stuff..
well its ok this car gets [email protected]% for gas mileage as it is, what the big deal if a filter is put in....but i thought if you replace the filter you do get better gas mileage...hmmmmm well im lost in the toss up between the stock filter and the filter shown above....anyone else can give there input please?