Originally Posted by Second Skin

The Gallon Kit is the smallest we offer.
1 Gallon is usually enough sound deadener to do 4 wheel wells decently well
2 Gallons is ideal for a very good sound deadening job though.

This is about as close as I can get you to wheel wells in a Z.
It is a Factory Five Roadster we did last year.
First we applied a laye rof Damplifier Pro to the wheel wells then Spectrum noise coating.

817 HP Factory Five Cobra - dead - Second Skin Forums

Hope that helps!
ANT
H