c'mon man, it's a z06 for crying out loud. they ONLY come with a 6spd.
1st gear winds out to about 62mph in those cars. whenever you pull all the way to 7100rpms you can get a few extra mph's out of each gear.
Plus the bigger wheels. When I was looking at a gear calculator, it showed as much as 3mph difference in ONE GEAR when going from a 325 to a 345.
2006 Corvette Z06
2" Stainless Works LT Headers
Random Technologies 3" X-pipe, with high flow polished cats
Callaway "Honker" cold air intake
Ported throttle body and intake
Custom dyno tune by MTI Racing Atlanta
496rwhp/478tq