The GTR intake port block-off plates are water-jet cut for precision, and are constructed of .125" aluminum. Each plate bolts on using the factory hardware.
Any upgrade on your GTR that requires removal of the intake manifold (such as the installation of your ID injectors and T1 Fuel Rails) can leave the intake runners open and susceptible to debris and hardware that can accidentally end up in to places it doesn't belong. Sometimes this debris is noticed and can be removed. However, if unnoticed, this debris can cause expensive damage to your internals. And since we all know that an ounce of prevention is worth a pound of cure, we made these intake block-off plates that you can simply bolt on to your runners and prevent any unwanted debris from falling in.