The number one main reason is there's no performance parts for them. No cams, no manifold, nada. It would have to be all custom, expensive and to me, pointless stuff. Plus, it's a very heavy bastard to boot. You wanna stick a big badass engine under the hood, then nothing says that you mean business like 500+ cubes of BBF sitting there.
2010 Camaro 2SS LS3/Brembo Victory Red/Black
SCT X4 base tune, Speed Engineering 1 7/8" LT's, CAI intake, Outlaw a/b
12.65 @ 115 as of 9/19/15
2009 GT Premium 5A BSM Rip 4/3/15
12.9 @ 106 best before loss