Megan Racing N1 Exhaust Muffler with 4" Tip & 2.5" Inlet for 00-05 Toyota MR2 Spyder 4" Tip Size Outlet, 2.5" inlet, 5.75" wide Total length 19.5" Long (tip to tip) Easy to install, Universal Design, Requires Welding only Removable double layer silencer in BLACK. 100% SUS-304 stainless steel Remark: Please check the dimension of the muffler listed in the specification against the actual space in the tail pipe section of your vehicle to make sure there's enough clearance to weld this muffler on. We recommend buyer to take their car to muffler shop and show them the actual dimension of the muffler such that they would be able to tell you if the muffler can be welded onto the car or not.