This thing would already have quite impressive in gear acceleration as is.
It does...
Did you read the part in that literature which states Mazdas claim that in gear acceleration from 80-120km/h in 3rd, 4th and 5th is quicker than a Porker 911 or M3
And who could resist adding to that as nearly all of us do with a least a software upgrade
My rides: 2004 Opel/Bertone TS Astra turbo convertible - 2012 Mercedes Benz C204 C Class coupe
Others: 2009 Honda City VTiL sedan - 2015 Fiat 500