Porsche Exhaust Clamp - Catalyst to Muffler - 911 05-08 997-111-520-00 948-106-011-04--LAS this book will help you

this book will help you understand the process and pitfalls

Porsche Chain housing to cam housing gasket for 996 and 997 (2002-2011) models

except 911S

Firts 911 and 914 (1968-1989) models

Porsche 911 Carrera (1999 8/98 - 2005)

Porsche Exhaust Clamp - Catalyst to Muffler - 911 05-08 997-111-520-00 948-106-011-04--LAS this book will help youPorsche Exhaust clamp, catalyst to muffler, for 911 Carrera 997 (2005), 911 Carrera (2006 2008), 911 Carrera 4 (2006 2008), 911 Carrera 4S (2006 2008), 911 Carrera S (2005 2008), 911 Targa 4 (2007 2008) and 911 Targa 4S (2007 2008) models. Two required. Not for cars with option IXLF Sport Exhaust.