So to fix the exhaust vibrating issue is to buy which exhaust kit ?
BTW here is my mpi kit, took out the grid heater so I went with the sdp kit for that
I have not tried it yet, but I think the flo pro front pipe for the LMM will fix it. MA motor mounts might help too, don't know till I get it installed. I'm doing 1 thing at a time to see what helps it the most. I did raise my idle rpm as a temp fix. That works for now. I don't want to leave it like that when the weather warms up because it could make the converter get hot and overheat the Trans. So far in the winter it hasn't been a problem.