Thanks Jon, I just put them on.
First impressions: sounds awesome. I think it has the best sounds @ both lower end and higher end. Low end is really deep, and higher end is really high pitched. 4k rpm is where I don't want to be around for too long... It's almost like when you listen to music, you turn the Mid all the way up while treble and bass stay...
in terms of loudness... honestly, I don't think it's much louder than the GReddy Ti-C cat back I had on my G37S back then. Perfectly livable for me
