I can answer all of this.
A good option is an interceptor type box like Euro+Drive. Once removed these leave no footprint which may give someone concerned about the warranty some peace of mind. We don't currently offer this for the Euro 124.
Greg
Yes, except of course for the Abarth's exhaust.
Yes, the US spec 124 has a different tune, everything else under the hood is the same. However I am not sure about the exhaust. The Euro 124 has a tune that's very similar to the NON sport mode tune in the US spec 500 Abarth.
It's entirely for marketing reasons. As an example Fiat sells the same basic T-Jet 1.4 turbo in power ranging from 135-190hp depending on which model you buy.
First of all, at this moment I don't think anyone actually has a re-flash for sale for this car. When they do (we are working on it, and can flash the car) it will alter the flash counter, meaning that the dealer can see how many times it's been flashed. I don't know of anyone who has actually had a warranty claim denied for this, the dealers don't seem to notice it or care. I suppose in the case of a blown engine they might take a close look, but we just don't have that problem.
A good option is an interceptor type box like Euro+Drive. Once removed these leave no footprint which may give someone concerned about the warranty some peace of mind. We don't currently offer this for the Euro 124.
Greg