According to http://www.emirates.com/us/english/plan_book/essential_information/baggages/baggages.aspx,
For tickets issued on or after November 15, 2014
Total dimensions (length + width + height) of each piece must not exceed 150 cm (59 inches). Customers with individual items exceeding above dimensions up to 300 cm (118 inches) will be charged an additional fee. Individual items with total dimensions exceeding 300 cm (118 inches) cannot be transported as checked baggage and must be sent as cargo or freight.
For customers with two pieces of luggage in all three classes, the total combined dimensions of both pieces should not exceed 300 cm (118 inches).
For tickets issued prior to November 15, 2014
Total dimensions (length+ width+ height) of each piece must not exceed 158 cm (62 inches). For Economy Class customers with two pieces of luggage, the total combined dimensions of both pieces must not exceed 273 cm (107 inches). Customers with baggage exceeding these dimensions will be charged an additional fee.
I'm allowed 2 bags, and I have two bags that measure 158cm. Since Nov.15, 2014, the max size allowed has been reduced from 158cm to 150cm. How strictly are the new rules enforced? Do I need to buy new bags just for this one flight? I couldn't find any info about the fees for luggage that violates size restrictions.