In a rare occurrence, Porsche is recalling certain versions of its latest 991-series 911 sports car due to a problem with the exhaust pipes of the cars.

The recall affects 911 Carrera and 911 Carrera 4 models from the 2012 and 2013 model years, but only those built from March 7, 2012, through November 12, 2012.

They also have to have been fitted with the standard exhaust system and not the sport setup.  

There are said to be 2,263 cars affected by the latest recall in the U.S.

According to Porsche, the exhaust tail-pipes may fracture, causing them to separate from their respective rear mufflers.

Should this occur, the tail-pipes could become a hazard for other vehicles on the road, increasing the risk of a crash.

Porsche is in the process of contacting owners of the affected cars. They will be asked to bring their cars to their nearest Porsche dealership, which will replace the rear mufflers free of charge.

For further information you can contact the National Highway Traffic Safety Administration at 1-888-327-4236 (reference recall campaign number 13V058000) or Porsche at 1-800-767-7243.