I have the HTRZ II's also. They are much, much quieter going down the road than my Eagle GTII's and also have better overall grip. I currently have the 215/45/17's on 17x7 Konig Imagines.
I recommend them highly.
Bob Johann a/k/a SoundQ SVT 1998 T-Red SVT Contour #3088 Member of Team Xtant 2001 IASCA Pro Street 1-600 World Champion IASCA Sound Quality judge since 1997 Cheezy Website - http://www.sounddomain.com/id/soundqsvt