The largest stress from the Nismo mount comes from the bind that it puts on the exhaust system when retaining the mid pipe bracket. Since you have stillen mid pipes without the hangers, you will have less vibration then someone who has the mid pipe hangers connected when the Nismo mount is used. You are still putting your u joints in a bind, So your adding extra stress to your driveshaft. The mid pipe hangers do support the exhaust system and are recommended. What I am saying is the Nismo mount is not the correct design for the Z32 and that the stock mount would be the better choice.
