Features: 1.Acoustic Control: The muffler is designed with excellent, sound absorbing manufacturing, giving a low, deep tone that is reverberated to increase sound. 2.Size: The inlet outer diameter is approximate 2.5in, and the outlet outside diameter is approximate 4in/10.16cm. Please measure your car's inlet before purchasing. 3.Excellent Quality: The side walls of the muffler are made of two layers of stainless steel, which has better surface, wear resistant, high temperature proof, will not easily deform. 4.Practical: This muffler's straight through shape helps relieves back pressure, vibration while absorbing sound waves, to improve driving experience. 5.Installation: Installed towards the end of a vehicle's exhaust system, work on the principle of destructive interference and absorption. Specification: Item Type: Exhaust Muffler Tip_x000D_ Material: Stainless Steel_x000D_ _x000D_ Length: Approx. 18.5in_x000D_ Inlet Outer Diameter: Approx. 2.5in_x000D_ Outlet Outside Diameter: Approx. 4in/10.16cm_x000D_ Fitment:_x000D_ Universal fit PackageList: 1 x_x000D_ _x000D_ Exhaust Muffler Tip