sort of.
I actually had someone send me some genesis bootlegs from brazil, and replaced the eproms with sockets, plus rewired them to work for up to 32 mbit (ex-cyber helped me quite a bit with the latter).
if you can get any of those carts, look for the ones that use 4 eproms for the game.. those can be configured for up to 32 mbit, using 27c8001/27c080/27c801 eproms (or 4001/040 for up to 16 mbit).
they'll work without modification for 32x games too.
something similar applies for SMS too, btw.. you can use a monopoly cart to convert it to use a 4001 eprom, including sram (phantasy star, baby!).. mike G sent me the info on rewiring those, and it works great.