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Both will get you there, but Whipple`s IAT`s seem to be better from reports from other members. I have a Whipple and have run the time in the sig w/ a completely stock engine, just bolt-ons and stock pulley on the blower. KB is a great unit just get meth injection to keep the IAT`s down if you go that route.
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2010 SS L99, 536rwhp 10.843@126.72. 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 12.22@113.29 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 11.80@118.82, Number 2 on the Corvette Forums Bonestock fastest list..
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