I recently bought a new to me 2007 997 TT. It had 12,800 miles and in a month I've moved the needle to 14k and change. I can't stop driving it. The dealer I bought it from changed the oil for me at 12,800 and there is nothing wrong with the car. I have the GMG headers, exhaust, intercoolers, air box and flash.

Is the first service due at 15 or 20k? When I have this done, do I need spark plugs? I've heard all kinds of different opinions. The car is not missing and there is no check engine light. If this is a FAQ please accept my apologies now.

 

Well, with the flash the stock plugs will not last as long as they should so when it is time to replace the plugs, go 1 step colder. Handles the increased power better!