i kinda did the same thing, but i don't have pics, either.

if you take the screw out of the bottom, the cap pulls out with a pipe welded to it. i drilled 5 or six little holes thru the pipe, so it looks like a flute i also drilled a few 1/4 holes in the end cap. installed it all back together, and used a pair of vice grips to tighten up the bottom screw.

it's actually QUIETER than stock, and it got rid of some of that ting ting tinny sound.

seems faster, too.