Is the only motor mount for my car and engine the hasport solid motor mounts or is there a non-solid motor mount out there that I can purchase to directly replace the Hasport mounts I have on now???

Also my car is having Idleing problems, the rpm's will raise and lower around 500 rpm's consistently and while driving at a steady speed my car will sputter and back fire. Could it be my $1300 spoon ecu messin it up?