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What are the real benefits of uprating the RS6 from 450 to 500 BHP? Been thinking of having this done, but need some feedback from those who have. Don't want to sound cheeky but if the upgrade improves economic fuel consumption then I will definately go for it.

Yes so would i. I have seen a post, i think on this forum where someone had theirs remaped and said the economy was improved afterwards. Needless to say it will be worse under load

Generally, on all cars that we remap, fuel mileage does improve (2 or 3 mpg) in identical driving conditions compared to before the remap. That is provided you don't drive the car flat out all the time, though

Hope this helps,

Mihnea

I have found this to be the case on my S4, early days though but the fuel consumption seems to be better.

hi there i have a s3 which is 280bhp its been chipped twiced whats else can i do to it to get it more power will i need a better exhaust systems would that make different.