I‘ve got an enhanced flash from the factory early this year. This flash is for cars without any other modification.

Now, playing around there is also a bad smell like burnt plastic.

But it‘s only after a hard „pedal to the wood“ up to high revs, than shift the next gear and than usual lower cruising mode.
So with my wife next to me I stop such ideas in the future ;-)

Yesterday I used my OBD reader, which shows:
misfire cylinder 1
throttle position to high (maybe caused by the flash?)
problems with the turbo circle (??? a 2.0 GDI?)

René

2018 plus4 (sports green)
with a homemade really shiny red tinted dash…