Forgot to add...anyone bought an Accell Racing chip off ebay
Discussion
Never heard of them myself, or know anyone with one fitted. And I have met a few Porsche owners and studied a few forums over the years 
Anyway, I'm sure they work as a rough map, but what's the point? You should really only put a bespoke map in that's suited to your car, at least a tech can check that all sensors are working. For all you know you're lambda's out etc. and the chip won't do anything useful at all.
I'd always get it rolling roaded before and after and get a bespoke map. It's only about 300 GBP or something from AmD and they will have some decent advice about what works re exhaust/filters, if at all. You could save more than just buying stuff off ebay willy nilly and hoping it works together.
Anyway, I'm sure they work as a rough map, but what's the point? You should really only put a bespoke map in that's suited to your car, at least a tech can check that all sensors are working. For all you know you're lambda's out etc. and the chip won't do anything useful at all.
I'd always get it rolling roaded before and after and get a bespoke map. It's only about 300 GBP or something from AmD and they will have some decent advice about what works re exhaust/filters, if at all. You could save more than just buying stuff off ebay willy nilly and hoping it works together.
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