All parts must be factory stock from one of the eligible years,
except where otherwise noted. In general, modifications which
improve aesthetics, access to systems, safety or reliability are
allowed and encouraged provided they offer no performance
advantage. There are no exceptions. No upgrade to any Boxster S
component is allowed unless specified in these
rules.
Any modification not expressly covered by these rules is
prohibited.
NO MODIFICATION OF SPEC PARTS PERMITTED
NON-STOCK PARTS CAN HAVE NO POTENTIAL FOR AERODYNAMIC IMPACT
