 Some sources state that the "Kasturi" class prior to the SLEP had been equipped with the Exocet MM38, an old variant of the missile, and that the modernisation included an upgrade to the newer and more capable Exocet MM40 Block II variant.Other sources state that the ships had been equipped with MM40 Block II missiles straight from the beginning.The "Kasturi" class is powered by a CODAD propulsion system, provided by four MTU diesels driving two shafts and developing driving two controllable pitch propellers.