NOVELTY - The system (10) has air inlet pipe (26) that receives exhaust air from engine through exhaust pipe (22). A return conduit (42) pneumatically connects return outlet of outlet pipe (40) with air intake device (14). A filter element removes particulate matter and/or pollutants from exhaust air and hot gas stream. A cooled gas stream is directed towards tube inlet of outlet pipe, and return air is discharged out through return conduit to air intake device. The hot gas stream is directed around cone portion and discharged pipe is removed as hot exhaust air to environment.    USE - Exhaust recovery system for internal combustion engine of motor vehicle. Uses include but are not limited to car, truck, van, motorcycle, scooter and all terrain vehicles (ATVs).    ADVANTAGE - The cooled gas stream is redirected to the air intake device through an outlet pipe at the first end of the muffler so that pressurized cooled air is directed into the air/fuel mixing device. Hence the performance and efficiency of the internal combustion engine can be improved. The recovery system can remove particulate matter discharged by the vehicle to reduce pollution emission associated with engine. The fuel efficiency can be improved and pollution emissions of motor vehicles can be reduced while maintaining sufficient power output to achieve the desired use of the motor vehicle.    DETAILED DESCRIPTION - A muffler (20) includes housing with sidewall, and end caps at ends (30,32) of muffler, respectively. An air inlet pipe includes end (30) pneumatically connected to exhaust pipe of internal combustion engine (12) and end (32) inserted in muffler chamber. Another end of air inlet pipe circumferentially discharges exhaust air into chamber. A filter element is arranged in vortex inducing filter mechanism. A cone includes cone tip directed toward tube inlet of outlet pipe.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic top view of exhaust recovery system.    Exhaust recovery system (10)    Internal combustion engine (12)    Air intake device (14)    Muffler (20)    Exhaust pipe (22)    Ends of muffler (30,32)    Outlet pipe (40)    Return conduit (42)