I have basically the same result as jfro. I did the softronic flash when they had their winter sale last year and have been very pleased. Throttle response is better and the car feels stronger, not a huge change but noticeable. The fact that i can eliminate my secondary o2 sensors with no CEL and it included the durametric kit are a nice bonus.
I did lose some fuel economy but im ok with that. Freeway driving still gives me excellent mileage but around town it has decreased. Of course i also flog the hell out of my car! Im afraid to look at the overrev counter!
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2003 Cayenne Turbo
Last edited by manolo; 11-24-2010 at 09:13 AM.
Reason: My superior spelling skills...
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