Sixteen extra millimetres of rotor diameter, straight onto your Excel's existing hubs.
“Power means nothing until the rest of the car can use it.”
Cheap blank rotors in the stock 241mm size leave you fighting the same heat soak the factory engineers built in. The 257mm diameter adds thermal mass and braking leverage without custom brackets or caliper work. DBA's T2 spec is a known quantity on Australian club circuits — not a gamble on unknown offshore metallurgy.