A thing to look at as well Sam is my Tomei Ti has around a 2mm clearence to the passenger side rear...sway bar/arm? Wiggling the exhaust tip even slightly you can hear it knock against the arm. I've ordered some heat-wrap to put around that section and wedge in between. So not only is it overly loud - it vibrates like crazy. A few feet of titanium pipe vibrating against more metal isn't a very pleasant sound :bawling:Very similar to your spec
Equal length nismo downpipe
Tomei Titanium decat and Tomei expreme exhaust.
On initial fitting it wasnt too bad but now after some heat has gone into during mapping its nuts