For the purposes of article forty-eight-A of this chapter, maximum performance speed shall be the greatest speed which can be attained and maintained by a limited use vehicle under conditions prescribed by the commissioner at the time of its manufacture, as certified by the manufacturer and filed with and accepted by the commissioner. The maximum performance speed of a limited use vehicle shall remain as certified regardless of any modification made to such vehicle after such certification.
N.Y. Veh. and Traf. Law § 122-B