IT GOES FROM THE BRAKE PEDAL TO THE POWER BRAKE BOOSTER. YOU ARE LOOKING AT ONE USED BRAKE PEDAL PINONLY, AS SHOWN IN THE PHOTOS. IT IS OFF AN 2003 HONDA PILOT EX, EXTERIOR PAINT COLOR CODE: NH-662P-4, SAGEBRUSH PEARL, INTERIOR COLOR: TYPE G, WITH A 3.5L ENGINE, VIN 1 AS 6TH DIGIT, AND 5 SPEED AUTOMATIC TRANSMISSION.