VERY BAD DESIGN OF MUFFLER. IT IS VERY DANGEROUS. THE MUFFLER HAS A HOLE ON TOP. THAT HEAT EFFECT THE BATTOM TRUNCK, THE HOOD GET MELTED, HEAT SHEILD GET BURNED AND THE ROAD ASSISTANT TIRE GET MELTED AS WELL. I WAS LUCKY I WAS ABLE TO SMELL IT. ALSO ALL BODY GET VERY RUSTED AND LOOK HOURRIBLE.