Just a word of advice. Get 18s over 19s. I have had Titan7 in 19x9.5 et23 and 19x10.5 et 34 wrapped in PS4S 265/35 and 295/30 tires on the car. It sure feels a lot stable in corner and there is a lot of grip from the wider track. However they just felt heavy and the weight transfer in corners are hard to materialize. (Front: 20.6lbs, Rear: 21.1lbs)
I recently switched to BBS RI-A in 18x9.5 et23 and 18x10.5 et37 with also PS4S but in 265/35 and 285/35 tires. Honestly, the car actually feels faster from standing and the entire car felt it got smaller due to decreased unsprung weight. (Front: 18.6lbs, Rear:19.4lbs). I got a 6 lbs total saving over 19s and 15lbs saving over stock, 20lbs if i run R Compound or 200TW tires. The difference is night and day.
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I know that for M2c will require AP racing or StopTech BBK to be able to fit 18s. If u have the money do it, u'll not regret it and running forged 18s are worth every penny.