The 200S+, 230, 300XS, and 330L are not certified in the US although some were pending certification before Extra discontinued production of aerobatic aircraft. The 300XS and 330L use the 350 HP Lycoming AEIO-580 which is still not a certified engine and the reason for the lack of certification.
The rest are certified including 200, 300, 300L and 300S
PM me if you hanve any a/c specific questions