Hooker 4'' Diesel Truck Exhaust Systems improve exhaust flow and reduce lower back pressure and EGT. They are a direct replacement for restrictive factory systems and include all necessary hardware, tips, and
do-it-yourself instructions. However, having a helper to manage the system's size is recommended.

Highlights:

All mandrel-bent tubing to ensure smooth exhaust flow

Robotic welds to ensure leak-free construction

Free-flow 7'' muffler to reduce back pressure, improving torque

Perforated muffler to create aggressive yet mellow ''big rig'' sound

4'' tube to decrease exhaust gas temperatures for longer engine and turbocharger life

Polished, slash-cut 4'' to 5'' stainless steel tips

Systems manufactured from 16-gauge 409 grade stainless steel to resist corrosion