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Hi,

Is it possible to get an Engine ECU diagnostic done to change the parameters to get better MPG? Can any garage do this or do i need a specialist tuning company? What sort of MPG improvement might i get and how much am i looking at to do it?

Cheers

Tom
 

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You can get it remaped with loads of companies. And they can map it to be sportier or more economical. Its common throat people get the I between map to get a better drivability and better econamy, you'll see a gain not sure how much but I see people saying they gained 3-4 mpg . Bare in mind none of them got the exonamy map. I'll be mapping mine at some point and probably with regal as I like em lol I don't recomend tuning boxes as I don't like the way they work. But each to there own
 
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