I had my HKS exhaust for over a year now and I love it. I don't care what anyone says every exhaust does drone. I have stillen headers with z1 cats and I get very little drone at 2,500-3000 rpm. I previously had the ark exhaust but got rid of it cause the canisters hangs low. Im on eibach springs and have no issue with the height of the hks. As for the sound the exhaust is on the quite side and sometimes I wish it was a little louder. Also, as for looks it's a nice looking exhaust with good built quality.