Originally Posted by JDLM
Jason: We fabricated a bracket for the front, and did a whole slew of welding/machining for the rears. We have a bracket ready to sell for the front, but brake bias will be affected without doing something in the rear. Most garages probably won't do the mods required for the rear.
Thanks for messaging, at least now we have an answer.
Too bad it's not a simple bracket adapter for the rear; I'm sure we'd have them on the market by now if it was that simple.
OP, If you decide to go 335 (which I recommend, they're more powerful than 135 or performance), you'll need the 335 e-brake assembly for the rear as your current one won't work with the larger rear rotors.