Hooker's new big 4" diesel truck exhaust systems offer improved exhaust flow, lower back pressure and a reduction in EGT.

They are a direct replacement for the restrictive factory system and include all the necessary clamps, hardware, hangers and tips. They also include comprehensive instructions ideal for the home "do-it-yourself" mechanic. Hooker's turbo back exhaust systems are big so we recommend the installer also have a helper on hand.

Features / Benefits:

• Manufactured from sturdy 16 gauge 409 grade stainless steel to resist corrosion.
• All tubing mandrel bent to ensure smooth exhaust flow.
• All welds are robotic to ensure leak-free construction.
• Free-flow 7" muffler reduces back pressure for improved torque
• Perforated muffler exhibits aggressive yet mellow "big rig" diesel sound.
• Big 4" tube reduces harmful exhaust gas temperatures for longer engine and turbocharger life.
• Systems are easy to install and include all the components necessary for installation on any cab / bed / chassis configuration.
• Includes polished, slash cut 4" to 5" stainless steel tip(s)