Eibach 2.5" ID x 12" Tall Coil-Over Spring - 80 lb. BR 81686 Includes eight 1/4"-20 x 1-1/2"

Includes eight 1/4"-20 x 1-1/2" heat-treated studs

Adjustable Screw In Air Bleeds

Plug and Play for 2008 - 2019 GM Trucks and SUV's

and does not require any calibration

Edelbrock pulley part #15822 is for use with any of our Professional Tuner systems

Eibach 2.5" ID x 12" Tall Coil-Over Spring - 80 lb. BR 81686 Includes eight 1/4"-20 x 1-1/2"Eibach's ERS line has evolved over the years to be the world's most prominent, comprehensive and superior Race Spring System. Eibach Race Springs are all manufactured in series production, often repeated, with a strong manufacturing experience. Thus, Eibach constantly achieves the most linear spring characteristic (rate) while maintaining the lowest tolerances and the highest quality in the industry. Product Description: Coil Spring Coil Over 2. 5 in