how would a fmic make a mess of a turbo? probably create a drop in pressure across the range by 1 or 2 psi maybe and will need a remap to make most of it
so they are said to you to upgrade your fmic? from the Toyo sport one to something else? What did they suggest? there is a lot of TMIC's out there that are very inefficient and maybe they thought yours wasnt doing much for the car
Oh sorry I had front mount on car already changed ecu and new turbo went for real lads advised me to upgrade my fmic but but it is running fine now still with toyo fmic no issues,
so your running a toyosport fmic.. and with your vf48 went and got mapped.
and whilst getting your car mapped you were advised to buy another make of fmic even though you already have one?? (that in my opinion is perfectly fine for vf48)