I've been reading through the exhaust mod threads for weeks, trying to decide if I was willing to try modding my stock exhaust. Finally decided "What the heck" and gave it a go.
I drilled 4 x 3/8" holes in each plate, and punched the baffles with a metal grounding rod. Took about 15 minutes and so far I like the sound! I'm really happy I tried this first before dropping the $$$ on some new pipes.
I admit, I'm pretty obsessive about keeping the garage clean. Everything needs to be in its place. We use the garage as our main entry and exit from the house, so I like to keep the floor clear so my dogs can barrel in and out of the house without running into anything.