i have the race VRSF FMIC and it did end up leading to a fair bit of turbo lag but after having installed the GFB DV+ the lag issue seems to have subsided a lot! throttle response is much much improved and you get a nice whoosh when letting off the throttle.
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18 M2 6 Spd AW - VRSF DP / CP & Race FMIC, ER TIC & GFB DV+ with BM3 Stage 2
Retired 09 135 JB4 G5 ISO w/BEF, N54 Tuning Performance DPs, BMS DCI, ER Charge Pipe
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