Dynatech Split-Flow Round Race Muffler - 3" Inlet, Outlet - Dimensions: 6" L x 5" Diameter - UDTRA Approved Brake Line Tubing Fully Supported CountershaftThe countershaft is

Fully Supported CountershaftThe countershaft is fully supported by needle bearings on a hardened steel shaft

Use with ALL42095 brake rotor

Torque Ball Stud and High Nut Kit

Ford Fullsize SUV / Truck 2021-23

552" and allow for the use of lightweight rockers

Dynatech Split-Flow Round Race Muffler - 3" Inlet, Outlet - Dimensions: 6" L x 5" Diameter - UDTRA Approved Brake Line Tubing Fully Supported CountershaftThe countershaft isThe Split Flow racing muffler is the "hot topic" among racers, and for good reason. The straight thru design can handle big power. The exclusive dual pattern core reduces dB levels while maintaing a powerful sound. The all aluminized, fully welded construction, make it a top choice for racing and high performance applications. Straight thru design for maximum flow. Dual pattern core for reduced sound levels. All aluminized materials and welded