Can I fit 19x19.5 + 55 wheels on my FD ?
 

Can I fit this on my lowered FD?

if not what do i have to do ?

I am going to assume you mean 9.5? If so, this will fit fine, you can always run a 5 or 10mm spacer if necessary.

all the way around? front and rear

Talk to Rishie at AutoRND. He is local to the bay area and has done plenty of larger sized fitments.

I think you'd be very close in the rear. My rear has 18x9.5 with 45mm ofset. There is about half an inch between the inside of the tire and the trailing arm. 10mm is almost a half inch. Up front, I would think you might rub on the factory spring. Might need smaller diameter springs such as a coilover would use. My fronts are 8.5 with +45. I can try to measure the distance between the inside of the tire and the stock spring later tonight if you'd like.

I have H&r springs on the car.