Ferrari 355 456 550 512 in rail adjustable Fuel pressure Regulator E85 safe

fits to Ferrari 355 456 550 & 512
direct replaces OEM regulators in the factory EFI systems 
floating ball seal 
adjustable 10 to 65 psi range
1:1 boost reference.
E85, 100% Ethanol and methanol safe.
can be used as OEM replacement