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  • Is the cap a functional gas cap?
It depends upon which cap is purchased:

C2 and C3 Corvette caps are NOT the functioning gas cap!  The LeMans cap is a cover which
is opened and the stock cap is removed through the opening

Mustang caps are functional and use the Stant brand locking fuel cap insert

Other applications are available in both functional and non-functional versions.

  • Does installation require drilling holes in the body or other modifications?
Again, depending on the application:

C2, C3 Vettes, and 64-70 Mustangs DO NOT require ANY modifications.  They utilize the 
existing factory mounting holes.

Other versions do require drilling for mounting. 

  • See the "INSTALLATIONS" tab at the top for some detailed photos of an actual installation