When they are installed new they are very solid and have little to no sag. That is the purpose of replacing an old mount because over time it will sag. The Nismo mount has more support from the angle of the rubber so that it will not sag as much over time.
Kyle "Grumpy Bear" Puckett Import Parts Pro Phone: 281-288-0700 AIM: KyleatIPP Yahoo: KyleatIPP