You have a m6 so definetly the D1. If you had the auto I would have gone Maggie.
2010 SS L99, 536rwhp email@example.com. Whipple Supercharger stock pulley, ARH 1 7/8 longtubes w/ catted xpipe, magnaflow 3" mufflers, ADM Race CAI, 3:70 gears, lightweight wheels and nitto drag radials. Stock internal L99, stock converter.
Bolt on best before blower firstname.lastname@example.org w/ nothing but ARH headers, catted x-pipe, ADM CAI and a tune on stock Pzero`s!
Other car 2008 C6 Ls3, z51, A6, Npp Exhaust, best bonestock pass email@example.com, Number 2 on the Corvette Forums Bonestock fastest list..