** 100% GENUINE TOMEI **
SPOT A FAKE !!

http://www.tomeipowered.com/BTE/index.php/2010/06/23/warning-chinese-made-copies-of-tomei-fuel-pressure-regulators/

The factory fuel pressure regulator (FPR) is great for stock to mild tuning, but it is not capable of increased fuel demands for high horsepower applications. Tuners require more fuel to power their modern engines and Tomei has created 2 new FPRs to meet this need. The Tomei FPR comes with 2 ports on the bottom, and side. The bottom is for the fuel exit. One side is for fuel inlet,. These are all 1/8 NPT size. The Tomei comes in Type S (Standard sized Diaphragm) and Type L (Larger Sized Diaphragm). 
Type S 185001 is recommended as factory replacement and increased fuel demands. 
Type L 185002 is recommended for very high hp applications ( 380 hp and above ) with large fuel needs 

Billet Aluminum Construction Oversized Diaphragm With 1/8NPT & -6AN Fittings

*Fuel pressure gauge MUST be Tomei Fuel Pressure gauge (1/8PT THREAD)