1. For gasoline, this fuel filter has an internal bypass to adjust the fuel output pressure to 58psi (4 Bar) 2. 3/8 male inlet, 5/16 male return outlet and 3/8 female supply outlet 3. Made of high-quality materials, durable 4. Fuel boosting is mainly to increase the pressure of the injector, make the fuel spray into a mist, increase the mixing ratio of the fuel, and burn more fully, thereby increasing the power, which is in line with the real fuel and power. 5. Applicable models: LS1, LS2, LS6, LS3, LQ4, LQ9, LM7, L99, L76, LSX