I'm getting ready to install some long tubes and a k member and I figured since I'm in there I might as well upgrade the motor mounts as well. Does anyone here have any experience using solid motor mounts or polyurethane mounts? I'm worried about the noise and vibration issues using solid mounts. The car will see some 1/4 & 1/8th mile drag racing at the track often but at the end of the day it's still a street car.