Patent ID: 7992675

Claim:
A vehicle exhaust device wherein rear wheels are disposed outside, in a vehicle width direction, rear side members extend in a vehicle front-rear direction, a rear bumper is disposed behind the rear wheels, the rear bumper having an opening portion formed at a side portion in the vehicle width direction, a cylindrical diffuser extending into the rear bumper is mounted in the opening portion, a muffler is disposed at a rear portion of a vehicle with an axis of the muffler extending in the vehicle front-rear direction, and a tail pipe connected to a rear end face of the muffler is inserted into the diffuser while spaced from an inner periphery of the diffuser, wherein the muffler is disposed on a rear side of the rear wheels in the vehicle front-rear direction with an outer peripheral face of the muffler protruding outside the rear side member in the vehicle-width direction, wherein the rear end face of the muffler faces a front end opening portion of the diffuser, wherein, when the vehicle is viewed from behind, the muffler has a circular or oval sectional shape, and wherein a portion of a lower face portion of the diffuser outside the rear side member in the vehicle width direction is tilted so as to become higher in a vehicle vertical direction as the portion extends from an inside to an outside in the vehicle-width direction in accordance with the shape of the lower surface portion of the muffler.