GFB FX-S Bosch Fuel Pressure Regulator cid_1929641 An optional trans cooler line

An optional trans cooler line manifold is available for another easy installation option

critical clearances or improved design

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For mounting Water Temperature gauge senders or probes in 5/8" heater hose

GFB FX-S Bosch Fuel Pressure Regulator cid_1929641 An optional trans cooler lineIf you increase the performance of your engine, you need to ensure your fuel system can deliver the goods or you're going to have a bad day! Upgrading the fuel pump is the first step, but doing this alone will usually result in excessive fuel pressure, especially at idle. This is because the factory Bosch regulators typically don't flow enough to support larger fuel pumps, especially with turbo E85 setups that demand high fuel flow rates.