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Senior Member
Is an FMU(vortech,comptech) a must if you turbo your civic???
it depends on how your doing your turbo setup...if your replaceing the ecu for a programable
if your adding larger injectors with an s-afc or fields
if you running stock injectors and fuel pump...depends on boost and turbo size..but safe to say yes

Knowledge, I hope Greddy cuts you a check for all the advertising you do for them ;)
going the fmu way is the cheap way out- and IMO, not a good idea if you care about reliability
I agree with pissed on this one.....the fmu route will have you breaking the VERY least run larger injectors if your going the cheapo route!
but doing it right the first time pays in the long run