Is r154 swap possible?
 

Possible to swap r154 trans to the fa20? I see mount kits but there always for 2jz swapped brzs

Sent from my SM-N920V using Tapatalk

The very short answer is "sure, with enough money you can swap anything"

The less facetious answer is no. I assume you are asking if you can buy off-the-shelf parts to do it. That answer is no.

The only current off-the-shelf transmission swap (not counting proprietary sequential units) for the FA20 is the V160 / 161 kit from Full Blown Motorsports. It's expensive.

Can the R154 be done? Yes, but you're on your own.