300ZX (Z31) Upper Coolant Bulkhead VG30 25 exhaust studs and the

25 exhaust studs and the larger M10x1

The factory units have been exposed to water

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

Our plenum tops are CNC cut from 6061 Aluminum

3" 304 Stainless Steel V-band flanges & Clamps

300ZX (Z31) Upper Coolant Bulkhead VG30 25 exhaust studs and theEucadian 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