whats next ?

So im wondering what I should do next, some input needed I think spec as follows

Mg zr td 101

Sdi injectors

Decat

Free flowing back box

Fmic

Boost @20psi

Cone filter



Would there be a gain in power/torque if I went to 2.5" diameter exhaust system with my current mods or should it be the remap to finish it off.



I have seen a few builds of bigger turbos fitted an 180bhp achieved so is it a case of getting the right turbo making the flange and downpipe sorting the oil drain then having it remapped.



So I turn to the experienced lot for some help



Cheers Dan.

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