recently stripped the airbox from my 1988 suzuki Gsx 550 with the intention of fitting air pod filters but i am struggling to find any suitable ones to fit the carbs. The carbs are Mikuni BSW30SS 30mm with dual intakes on each side and as of yet i cannot find anything suitable. Diameter is 9 1/2 cm and height is 5cm. Any help is appreciated.Has anyone had any success fitting pod filters to this model bike.