thank you guys for the positive feedback ! Tomorrow I will try to do a longer test drive for about 120km (~75miles) so the ECU is able to regain its learn tables.
After that I unfortunately have to make a break with this project for about a week as I'm flying to Egypt (diving the red sea) but I promise to put it on the dyno straight after my return in a good week. Please bear with me, the results are near and I'm at least as curious to see dyno numbers as you are.
And promised I will post the outcome regardless of what it will be. If I keep stock power or even loose power (with NA) I probably have at least a (very expensive) engine bay styling upgrade and can claim to have the only 370Z with a GT-R manifold installed and actually working in the world
But the hope is still alive and chances are not too bad it could work out - fingers crossed !
Just for your reference my last dyno results before the manifold project were 311HP to the wheels and 388NM / 286lbf/ft !
Modifications: 2.5" dual exhaust system, 300cpi race catalysts, stillen ss exhaust headers, stillen gen3 intake, NST pulleys, no tune !
Chris