Had a remap a couple days ago with Rich @FB Tuning. He did map my fridge before with the TMIC , and now after me fitting the FMIC , new spark plugs,we had to do it again. The question would be , what would affect the spool as the turbo was peaking only @3.8k - 4k rpm, wich is late.Having a TMIC it was earlier. I know that Fmic supose to give a bit more lag but reading tests etc., made me thinking again as after remap the lag shouldn't be noticed. Mods:

Autobahn 88 TMIC
One step colder plugs
3 port denso solenoid

Even Rich told that it should spool earlier than that.

 

lag can be a few things m8, header leak, uppipe leak, boost leak, knaffed turbine,. the fmic is around 0.08 of a second more laggy than the tmic so you wont notice the difference m8,. i fitted an 88 fmic and did not notice any difference,.
steve

 

What turbo are you using?

 

VF 23 , standart STI V3 turbo....

 

Header leak or uppipe most likely.