COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.80 Ratio - Big Block Chevy Quick Detailer It's an ozone and smog

It's an ozone and smog resisting

incrementAir Lift Company has been developing air spring suspension products for more than 50 years

Extra protection for severe service

2003-2017 Kia Sorento

2011-2013 Hyundai Elantra Limited Sedan

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.80 Ratio - Big Block Chevy Quick Detailer It's an ozone and smogThe next design evolution of the Hi Tech Stainless Steel Roller Rocker Arms are built to outlast and outperform in accuracy and strength. The Ultra Pro Magnum XD Rocker Arms are engineered from durable 8650 steel and include a machined billet pushrod seat insert for a wide range of super accurate ratios. A unique and wide ratio range to fit almost any popular application. These XD rockers are fully rebuildable and boast precision sorted needle