Please note: This system is designed to replace your factory OEM exhaust starting from the inlet of the muffler. If your exhaust has been replaced or modified previously, fabrication to the existing exhaust on your truck may be necessary for the proper installation of our kit. Trucks with modified suspension or body lifts may also require fabrication of the exhaust or truck for the proper installation of our kit. THIS IS NOT A COMPLETE "DO IT YOURSELF" kit. It is recommended that this kit be installed by a professional. Fabrication may be required. Any type of suspension or wheel/tire modifications may affect system clearances. We do NOT include any portion of the exhaust in front of the muffler. Additional parts or fabrication will likely be required.