This product is a HKS OEM Hi-Power Universal Single Exhaust Muffler made of stainless steel and chrome. It has an inlet diameter of 2.5 inches and an outlet diameter of 4 inches. The muffler has a single exit and is designed for performance. It is a universal fitment and can be placed on the exhaust, rear, and left of the vehicle. The product is manufactured in Malaysia and has a chrome finish.