Universal RS Type 4" Slant 2.5"In/Outlet Blue Tip Muffler Light Weight & Fast Air-Flow Design Provides Instant Performance Upgrade High Quality T-304 Stainless Steel with Mandrel Bend 2.5" Inet (usually for non-turbo engines and exhaust with 2.5" inlet), 4" Outlet Removable Silencer Included Installation guide is not be included. We recommend consulting a body shop or restyle if you have any questions. Professional Installation is Required