Installed on my 2005 V6 4Runner. It makes a nice purr when it moves and sounds good when you step on it. There is no such hoarse, choked sound. It's fairly immediate after installation, but becomes more apparent after a couple of weeks. I left the default resonator on to maybe cut it off if that wasn't enough. I'm happy the way it is. Definitely recommend this for the daily driver looking for more than stock but not obnoxious.