Wheels Question
 

Guys I'm currently on BC Racing coilovers and wanted to know what is the widest size rim, offset, and tire I can get so the tire is perfectly flush with the fenders. Will I also need spacers?

I responded to your question in the other thread. The specs you asked about are good for a flush fit on coilovers.

http://www.the370z.com/wheels-tires/...spacers-3.html

Spacers are used to obtain a desired wheel position when using wheels with incorrect offsets. If you purchase wheels in the correct offsets, there is no need for spacers.

You can definitely get wheels to fit flush without spacers. 19x9.5 +12 and 19x11 +15 will sit nicely if you're not running any negative camber.

Guys what about 19 x 9.5 +20 and 19 x 11 +18?

What about it?

It goes without saying, but "flush" is not the same for everyone. For me, 19x9.5 +12 is aggressive (the wheels stick out past the front fenders) while 19x11 +15 is slightly conservative (needs spacers).