Flow II muffler is a high performance straight through stainless muffler option High Quiality 2.5" Mandrel Bent Aluminized Tail Pipes Installation Hardware Included Welding not Required *Disclaimer* This product does not interfere with any portion of the vehicle’s emissions control systems. The intent of the product is to retain all emissions control devices and their intended purpose on the vehicle. This product is in compliance with the Clean Air Act in full. These kits will give your truck that rumble you come to expect from a muscle car . The dual 2.5" Mandrel bent pipe will improve the exhaust flow and give you the a boost in power and fuel economy that you normally only get from much more expensive systems . They feature 2.5" mandrel bent pipe that are aluminized to increase life.These pipes exit under the passenger side behind rear tire. They are designed to clear OEM installed reciever hitch and OEM size spare tire. System is designed to fit all wheel base applications. These are a basic kit that will include everything from the muffler to the bumper.*Please be aware: THIS IS NOT A COMPLETE DIRECT FIT KIT . These systems are to be installed by an experienced professional installer FABRICATION MAY BE REQUIRED . any type of suspension modification/wheel and tire altercation may affect system clearances. We DO NOT provide any portion of the exhaust in front of the muffler . Additional parts & fabrication may be necessary and is to be determined by the installer .