Gaolbird,
I just put my TORS back on so this is a measurement on the TORS.
If you take your tape and hold it against the bottom of the last bolt
and measure to the end of the pipe, (the longest part)
is 10" EXACTLY.
Measured straight down from the bottom of the bolt to the top of the upper pipe is
about 8", can't be more specific than that because the pipe goes up as it goes out.
Hope this helps ya out.
skip