Well ive been intrested in a cayenne turbo, I found a 2004 turbo with 85000 miles original owner I was wondering is there anything I should check out before I buy it? Amd also I know it is a high maintanence truck if I were to do so.e upgrades (exhaust, intake, blow off valves and a tune) would it afftect the car in a negative way? Also how fast can I make this truck with out ripping out turbos or doing internals?

 

It's already fast. I wouldn't put the cart before the horse. Buy one and then, in time, you'll see if it needs anything. To your first question, have it inspected by a Porsche/Turbo specialist. Maintenance/repairs are expensive.

 

Good luck on the search! I would suggest doing some independent research in this forum since there is loads of useful information to be found that will either directly or indirectly answer your questions.