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turbolite said:
Turbo Al,
i've been thinking about exactly that a lot! but my car is completely original and still has that renewable Porsche warranty on it. furthermore it already has 72000 km on it, and talking to a tuner he suggested rather not to. he claimed that it would be best to do it before 30000 as now all parts have kind of run in this way, so i shouldnt stress it. what to say? 
and lastly, if i ever wanted to trade in my car i guess it would be tough with this mileage and a tuning, so i guess i leave it like it is ... 
still great performance and absolutely reliable!!
Turbolite,
I understand the warranty and resale issues. Regarding running in and then re-tuning at 70,000+km, I might agree with that concern if they rebuilt the engine, but they could still do a 550-600 peak HP upgrade safely by changing the headers, blowoff valves, hoses, airbox and exhaust, then turn up the boost to 1.2BAR (if you have K16's, you would of course have to change to the K24's to handle 1.2BAR safely, or use a tuner that installs modified turbo's-like RUF or others, I'm sure you could get local advice on that) with a re-programmed ECU-all without getting inside the engine, so I would bet the running in issue would be less of an influence.
But, in the end, the 997TT will be lots of fun-even in base form.

Al