Tweaked my exhaust a bit after 8 months or so with the Cattman header/Greddy SP2 combo... it just got too raspy for me.So I had the Greddy resonator and mufflers removed, and replaced with a Magnaflow 12640 resonator, and a pair of Vibrant 1148 mufflers (the black ones)... Now the sound is perfect... and I could swear there's a little bit more oomph too, but that could be from the colder weather + my R2c intake. Here's the vids:
Before, with the full Greddy system/Cattman headers:
http://www.youtube.com/watch?v=YDPmenl6erU
And now, with the Magnaflow/Vibrants:
http://www.youtube.com/watch?v=VE-Xa8tpLc0
It's just so much better now.