Intake: 1.295" installed height, 70 lbs. seat pressure, 209 lbs. open pressure, 0.435" lift; Exhaust: 1.290" installed height, 60 lbs. seat pressure, 162 lbs. open pressure, 0.400" lift

• Made in the USA
• Designed with increased spring rates and high lift compatibility compared to the stock springs
• Compatible with boosted or turbocharged applications
• CNC-machined titanium or H.T. (Heat Treated) Steel retainers and Cr-Si (Chromium Silicon) alloy dual springs provide valvetrain control at high rpms with high-performance camshaft capability