Hi there! the Password JDM intake sounds awesome and unlike an exhaust there isnt noise all the time, if you drive steadly it sounds stock and is quiet on the motorway but when you floor it all hell brakes loose and it sounds insane!!!! i highly reccomend getting one, there not the cheapest but do sound awesome, for the best results you need to sort a cold air feed, but mine seems fine without one, i got 161bhp on a dyno run recently just with my intake which is pretty good!!