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 flowRobotic welds to ensure leak-free constructionFree-flow 7'' muffler to reduce back pressure, improving torquePerforated muffler to create aggressive yet mellow ''big rig'' sound4'' tube to decrease exhaust gas temperatures for longer engine and turbocharger lifePolished, slash-cut 4'' to 5'' stainless steel tipsSystems manufactured from 16-gauge 409 grade stainless steel to resist corrosion