Can't tell from the video, but I will agree with the others about the heatshield problems. I was hearing all kinds of terrible squeaking/vibration noises coming from my car that made me a little worried.
Upon investigation, the cat and header heatshields were both cracked around the bolts and vibrating. I took off the bottom cat heatshield and put washers behind the bolts on the top cat and a couple spots on the header headshields to snug everything up. Noises are now gone.
2003 CD Silver ZX5 SVT, #546 of 2173. Born on 4/1/03 (April Fool's Car).
Mods: FR STS, Predator tune by Tom, FS UDP, STEEDA Ultra-Lite F1 Rims/Conti DWS's, FR Borla Cat Back, AEM CAI w/Bypass Valve, FS Strut Tower Brace