Need new muffler for car to sell. $480 retail. Kept looking, got down to $210 plus $40 freight. That brand is supplied by another company, $190 plus $40 freight, getting better. Looked further, they sell same part, unbranded, free freight for $138. My thoughts, muffler is made China etc, sell to me landed $138. Take off $40 freight, now $98. Their profit margin?, guess around 30%. I reckon they must buy them 50-60 bucks. Doing ok with $480 retail.