الهند بعض الانظمة فقط وليس المدفع بالكامل
اما تركيا فتصنع الشاسية مع اضافية انظمة تركية للشاسية
The T-155 retains most of features from K9 Thunder. However, its turret reflects original Turkish design, increasing both ammunition capacity and combat weight, thus reducing power to weight ratio. APU (auxiliary power unit) is installed while commander's panoramic sight is removed. Parts of the chassis, the INS (inertial navigation system), and electronic systems such as the radio and FCS (fire control system) were developed in Turkey. Inertial Navigation system was produced by
.
The howitzer is able to determine the coordinates of the targets at 17.5 meters deviation. Fırtına can open fire within 30 seconds.
The T-155 Fırtına has a maximum firing range of 40 km, depending on the type of ammunition. It can reach a top speed of 66 km/h.
The gun is produced by
.
The production rate of the T-155 is 24 units per year. More than 350
T-155 Fırtına howitzers were planned to be produced.
281 have been delivered between 2005 and 2010.
An upgraded version dubbed "Firtina 2" was to begin production in 2017, featuring improvement to range and rate of fire. The new vehicles were to be fitted with remote weapons stations capable of carrying
