When upgrading to higher power levels, stock fuel injectors are short lived as they simply cannot deliver enough fuel to safely run more than ~380RWHP. These Nismo injectors are engineered and designed to flow larger amounts of fuel to keep up with the demand as airflow increases.  Injectors are precision made and have exceptional calibration directly from the factory.  

We keep these injectors in stock. 

These injectors can handle up to ~600RWHP of fuel flow necessity and come as a complete kit ready to install in the "new style" (93+ Normally Aspirated, 94+ convertible, & 95+ Twin Turbo) Z32 engines equipped with the newer style fuel rails.  These injectors can be installed on an earlier model Z32 but will require use of either fuel rail adapters or a 300 degree "-4" fuel rail, both of which are available here at Z1.  1990-94 TT 615cc Injector & Adapter Kit available HERE.

These injectors are often called 555cc injectors due to the fact that they are the replacement for the earlier model Nismo injector upgrade which does flow 555cc.  These new style pintle-less Nismo injectors actually flow 615cc / min.  

Upper and lower injector o-rings included!

EPROM upgrade required.