I'm thinking about getting a set of solid rear endlinks for my RS or a STI tranny mount. I can't decide between the two because they both cost about the same yet affect different parts of the car. This is how things are coming together for my car as of now, at least for the tranny and handling stuff:

Handling-
Stock WRX rear swaybar
Front strut bar
Rear strut bar (not installed)
Whiteline solid front endlinks
Stock struts / springs

Tranny-
KB shifter bushings
KB SS (not installed)

So what would be better, the links or mount? (and I can only buy one for now)

 

If you upgraded the rear sway bar I'd say the links but until you do I say the tranny mount. That's just me though.

 

i have sti engine and tranny mounts for sale

 

You have PM Raazin

 

Endlinks, if you autocross. Endlinks are legal in all classes above stock but a tranny mount bumps you to Street Mod.