It's probably this one.
"Part # 16580
Magnaflow's Stainless Steel 2.5" Competition Series Cat-Back for the 2010 Camaro SS 6.2L V8 has an Aggressive Tone. This System DOES NOT Include Mufflers, It has a resonated X-Pipe and Includes Dual 5" Polished Stainless Steel Tips."
http://www.camaro5.com/forums/showthread.php?t=28047
Same one i am getting...
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2010, SIM, 2SS/RS, LS3, CGM Stripes