Exhaust notes from the 2013 Mercedes-Benz GL63 AMG. Source audio levels for both interior and exterior have not been altered.\rbr\rbrFull exhaust sound of the new Mercedes-Benz GL63 AMG. Feast your ears!\rbr\rbrMercedes-benz G63 AMG exhaust sound during Transylvania Adventure 2013.\rbr\rbr\rbr\rbrExhaust notes from the 2013 Mercedes-Benz GL63 AMG. Source audio levels for both interior and exterior have not been altered.