is it losing traction on launch?
being auto and stockish, I don't think it would.
anyway.
to get something like a 13.9 (in to the 13's as you're said).. get the exhaust finished (dump pipe and front pipe in one and a new large cat).
then get an SAFC and have it tuned.
Even the blue screen SAFC would get you a good increase in power, especially in the upper end.
the Blue screen ones would be below $300 now for sure.
dump/front pipe in one can be picked up for about $200 from a number of places brand new.
SAFC tune will probably set you back about $200.
all of that easily under $1K.
should push power to near 190rwkw.
should net you 13.xx
if you are losing traction on launch, then look in to tyres too.
I would also race with 16's instead of 17's.
I dare say that your 17's with tyres would weigh more than the stockers which weigh 16kg with tyres.
EDIT - don't replace the R34 SMIC with a FMIC.
you will lose the response that you love at the moment.
it is more than up to the task.
If the R34 SMIC doesn't have any ducting to it, I would look in to making one for it.
Water spray is another option but probably not needed.