Beyea Dirt Modified Muffler 3" Inlet 3" Turn Down Outlet 8" Long Body - Steel H771003 6 Cylinder ) 2" or

6 Cylinder ) 2" or 3" Drop

Indexing positions the ground strap of the spark plug properly for best piston dome clearance and un-shrouds the electrode for a more even burn and possible gains of 5-15 horsepower

alternator

Single Bearing

2008-2016 Ford F-350 Super Duty 81

Beyea Dirt Modified Muffler 3" Inlet 3" Turn Down Outlet 8" Long Body - Steel H771003 6 Cylinder ) 2" orProduct Description: Muffler Dirt Modified 3 in Inlet 3 in Straight Outlet 8 in Long Body Steel Natural Sold Individually With more than 15 years in the header fabrication business, Beyea Custom Headers knows how to customize your power curve to create a broader range of power. Each Beyea Custom Headers has been tried and tested. Beyea Custom Headers are used by many of the top Modified and Late Model race teams and engine builders across the U. S.