GKTECH Z34 370Z BUMPER RETAINER NISMO (Order in)NOTE: This item is specially ordered from GKTECH Australia and usually takes around 3 4 weeks to arrive. Listing is for: 1x Nismo bumper retainer (2015>) (Does not include under engine bash plate) Save your sump with this under engine bash plate. This is designed with low cars in mind and will reduce the risk of damage. It will also help reduce turbulence and improve airflow. 3. 0mm thick aluminium for the bash plate. 1. 5mm for front bumper retainer.