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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Viscosity Index 139
providing wear resistance and durability
- Easily change shocks and springs at the track using UMI’s unique quick-change system
These torque boxes come pre-welded
Factory torque arm bolts will work however are slightly too short and may not work correctly
Bellmouth Velocity Stack, 3.5" Inlet O.D. x 6" Bellmouth O.D. 2013 Ford Mustang Viscosity Index 139Vibrant Performance Bellmouth style Velocity Stacks allow for less turbulent air to enter your intake, resulting in air flow improvements and, ultimately, torque and horsepower gains. They are spun from 1 8" (3mm) thick 6061 Aluminum Alloy.
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