Lingenfelter L300046006 Lingenfelter C6 Z06 Corvette High Capacity Oil Tank 2006-2008 v1.0 - Manual (Page 6)

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10. With the liner removed, locate the bolt on the
bottom of the fender directly under the front
of the passenger side door. Remove this bolt
using a 7 mm socket (this is needed to push
the fender out of the way slightly to make
way for the removal and installation of the
tanks).
11. Mark one of the vapor lines as well as its
respective port with a piece of tape (or
equivalent) and remove the vapor lines from
the top of the tank. This is done by pushing
the small tabs on the ends of the lines
clockwise and pulling outward.
12. Using a 10 mm socket and extension, remove
the two bolts from the bracket holding the
middle of the tank. Be careful not to drop the
two bolts once you remove them.
13. Using a 10 mm socket and extension, remove
the bolt on the top of the tank located directly
between the oil cap and the fender.