PAC Racing Springs 7 Degree Valve Lock - 8 mm Valve Stem - Standard Height - Black Oxide (Set of 16) XB1LG GMC: Sierra 1500 19 -

GMC: Sierra 1500 19 - 19

Simple connectivity merged with Rugged's Heavy Duty Behind-the-Head Headset brings comfort and audio performance in the harshest conditions

55 Durometer

Ideal for street performance applications that desire a whining blower sound

PAC Racing Springs 7 Degree Valve Lock - 8 mm Valve Stem - Standard Height - Black Oxide (Set of 16) XB1LG GMC: Sierra 1500 19 -Product Description: Valve Lock 7 Degree 8 mm Valve Stem Standard Height Steel Black Oxide Set of 16 Traditional Springs are made from the same size (Diameter) wire throughout the helix of the spring. PAC Racing Springs has partnered with technology leaders in order to provide this advanced new tapered wire product. Tapered wire allows for a true progressive and dual rate without reducing spring travel and increasing weight from traditional methods.