This replacement air spring is designed to replace air spring when it is heavily damaged. It is made from rubber with synthetic fabric reinforcement which ensures extreme durability. This bellow features genuine high strength rustproof composite end caps. It consists of steel girdle ring and has high burst pressure. Replacement Bellow; For PN[75553]; [75653]; [75520]; [75555]; [75578]; [75577]; Fitment: 1996 Audi A4 Base 1997 Audi A4 Base 1998 Audi A4 Avant 1998 Audi A4 Base 1999 Audi A4 Base 2000 Audi A4 Base 2000 Audi S4 Base 2001 Audi A4 Base 2001 Audi S4 Avant 2001 Audi S4 Base 2002 Audi A4 Base 2002 Audi S4 Avant 2002 Audi S4 Base 2003 Infiniti G35 Base 2003 Nissan 350Z Base 2003 Nissan 350Z Enthusiast 2003 Nissan 350Z Performance 2003 Nissan 350Z Touring 2003 Nissan 350Z Track 2004 Infiniti G35 Base 2004 Infiniti G35 X 2004 Nissan 350Z Base 2004 Nissan 350Z Enthusiast 2004 Nissan 350Z Performance 2004 Nissan 350Z Touring 2004 Nissan 350Z Track 2005 Infiniti G35 Base 2005 Infiniti G35 X 2005 Nissan 350Z 35th Anniversary Edition 2005 Nissan 350Z Base 2005 Nissan 350Z Enthusiast 2005 Nissan 350Z Grand Touring 2005 Nissan 350Z Performance 2005 Nissan 350Z Touring 2005 Nissan 350Z Track 2006 Infiniti G35 Base 2006 Infiniti G35 X 2006 Nissan 350Z Base 2006 Nissan 350Z Enthusiast 2006 Nissan 350Z Grand Touring 2006 Nissan 350Z Touring 2006 Nissan 350Z Track 2007 Infiniti G35 Base 2007 Infiniti G35 Journey 2007 Infiniti G35 Sport 2007 Infiniti G35 X 2007 Nissan 350Z Base 2007 Nissan 350Z Enthusiast 2007 Nissan 350Z Grand Touring 2007 Nissan 350Z Nismo 2007 Nissan 350Z Touring 2008 Infiniti G35 Base 2008 Infiniti G35 Journey 2008 Infiniti G35 Sport 2008 Infiniti G35 X 2008 Nissan 350Z Base 2008 Nissan 350Z Enthusiast 2008 Nissan 350Z Grand Touring 2008 Nissan 350Z Nismo 2008 Nissan 350Z Touring 2015 Acura TLX Base 2015 Acura TLX SH-AWD 2016 Acura TLX Base 2016 Acura TLX SH-AWD 2016 Nissan GT-R Black Edition 2016 Nissan GT-R Nismo 2016 Nissan GT-R Premium