Longtime owner of a 06 Cayenne Turbo S Which I should never have sold. Ended up picking up a 2010 gts 957 as a kid hauler to play around with. A couple of questions for the more knowledgeable cayenne guys on here:

1. Looking into the metal coolant pipe upgrade - I have found conflicting info, but majority say in 2009-2010 they upgraded to metal coolant pipes from the factory - does anyone know for sure. I will look to see if I can confirm if mine are plastic or metal.
2. Looking to replace the secondary cats with bypass pipes - what is the preferred brand that wont kill the wallet. They should just all be just two straight pipes, but I prefer a bolt on solution that I can quickly replace with stock part rather than having an exhaust shop hack up my factory pipes. I found that "HHR" Hanksville Hot Rods offered a set, but seems that they are out of business or not selling these anymore.

Thanks. Will post pics as soon as I do some maintenance and a detail.