GFB FX-S (Street) Fuel Pressure Regulator - Up To 800hpUnlike others that use a metal to metal valve seat, the FX regulators feature a replaceable soft Teflon valve seat that helps retain fuel pressure longer after the car is shut down for easier re starting. We even went to the trouble of adding an o ring sealed spring hat to ensure no boost vacuum leakage through the spring adjusting screw.
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Unlike others that use a metal-to-metal valve seat, the FX regulators feature a replaceable soft Teflon valve seat that helps retain fuel pressure longer after the car is shut down for easier re-starting. We even went to the trouble of adding an o-ring sealed spring hat to ensure no boost/vacuum leakage through the spring adjusting screw.
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GFB FX-S (Street) Fuel Pressure Regulator - Up To 800hp