300ZX (Z31) Upper Coolant Bulkhead VG30 as well as a performance

as well as a performance increase in the mid and high RPM range of a turbo-equipped VG30 or VG33

Please read our warranty for more information

By removing the internal port chambers and polishing the plenum runners

which is why we have decided to offer our CNC cut plenum tops to you

This combination creates a plenum that weighs less than our gutted plenum offering

300ZX (Z31) Upper Coolant Bulkhead VG30 as well as a performanceEucadian Performance is proud to offer a replacement upper coolant bulkhead for your Z31! The factory units have been exposed to water, coolant, and various chemicals for over 30 years, making them susceptible to rust and deterioration. These degraded residues can circulate within the cooling system and can lead to leaks and subpar cooling. Using Eucadian Performance's innovative solution, our replacement bulkheads are manufactured from high quality