This Finishing Lines Billet Staging Brake is perfect for car enthusiasts and racers who need reliable braking. It's great for both split systems and systems with four - wheel braking. The billet base and parts make it durable, and the pistol - grip handle feels great in your hand. The slotted mounting point lets you adjust the angle easily. As for technical details, the reservoir style master has a 3/8 - 24 outlet, and the pass through style master has a 7/16 - 20 inlet and 3/8 - 24 outlet.