Had 2 in tti for my low deck with torson bars. I never had to remove the bars. I did not have stock engine mounts as I had a motor plate. manual steering. I would set the headers in the car with the starter laying on the drivers side header and drop the motor in, and bolt everything up. I got to where I could pull the motor in under 4 hours if needed. I even changed a few transmissions with the motor in the car. I now have an alterkation with tti step headers. I can unbolt the front steering linkage and drop the drivers side header right out. In any case I think having stock motor mounts in the car would make it way more difficult to install tti's.