I'm a recent owner of a 2014 Auris in the UK but cannot find anything about remapping the 1.6 Valvematic petrol engine (post-2012).
The only performance upgrade I can find is a pedal box to improve transmission time, whereas the older VVT-i engine can be remapped to 137bhp (albeit only a bit higher than the 1.6 V-matic's stock 132bhp).
Any ideas why this is the case, along with any alternatives if a remap is simply not possible?