Bypass plug with integrated port for fuel pressure monitoring or sensors

This bypass plug is designed to replace the factory fuel pressure regulator on LS1 intake manifold rails when using an external fuel pressure regulator. Unlike standard plugs, this version includes a 1/8" NPT threaded port to allow installation of a fuel pressure gauge or sensor—making it ideal for tuning or diagnostics. Compatible with 1997–2006 5.7L LS1 engines. Includes 1 plug with O-ring and reuses the factory retaining clip.

• Direct replacement for factory LS1 fuel rail regulator (1997–2006 5.7L LS1 engines)
  
• Required when using an aftermarket external fuel pressure regulator
  
• Integrated 1/8" NPT port for installing a fuel pressure gauge or sensor
  
• Made in Wichita, Kansas from aerospace-grade, USA-produced billet aluminum
  
• Includes 1 plug and 1 O-ring (reuses factory retaining clip)