ok back on topic:
thr Italians are taking their time updating the thread with pictures and dyno runs but they assured me they'll do it soon enough.
results on the modified GT4 one:
mods:
Strup headers
Crawford hi-flow Cats
Nismo exhaust
Crawford Plenum
Nismo S-Tune air filter
he's mounted a wideband sensor in the cubby hole together with a knock sensor led. their tuner should have done 3 maps, 1 for ul95, one for ul98 and one for ul101 (which the have in Italy)
average runs are: before UTEC: 290-293 BHP at the crank and 33,7kgm torque
after about 1 hour mapping, they hit 303 bhp at the crank and 35,8kgm torque.
the torque curve is higher and flatter across the whole rev range, over 5800rpm it's still over 35kgm. petrol in the car was a mix of 95 and 98.
so:
they managed to gain 10 bhp peak and 1,8 kgm torque
at 5000 rpm they gained 16-18 bhp and 2,5kgm torque
AFR is finally sorted, and not too rich like it used to be.
pictures and driving impressions soon, so they say
SO all in all, not too bad at all I'd say