[crazyjr]

Hey Dafni. I used a home made sway bar on my E-maxx when i was racing(it's in pieces now awaiting my attention). I know New Era has a sway bar kit for the E/T-maxx and RC Trix has a mechanical linkage type stabilizer kit for T/E-maxx, those are the only ones i am aware of in aftermarket.

for the Revo, I am only aware of the ones on the Traxxas forums done by Tornado racing in the Revo racing thread (you'll have to read deep in the thread to find the pictures). Ironically for you they used MBX5 sway bars

I hope this helps.