Kelford KVS276-BT - Beehive spring and titanium retainer kit for the VW Audi EA888 Gen

Premium quality spring steel wound in USA by PAC. Made with advanced heat treatment processing and surface finishing techniques (nano peening) to extend fatigue life.
High spring frequency to allow for better spring surge control at high rpm.
30% higher seat pressure than the OEM spring. Designed for high boost and high rpm applications. Steel spring seat supplied to avoid wear on the cylinder head. (OEM spring sits directly on cylinder head).

IN: 36.2mm installed height. 100lbs on seat. 210lbs at 11.5mm open. 12mm max lift.
EX: 35.1mm installed height. 110lbs on seat. 220lbs at 11mm open. 11mm max lift.

Install supplied spring seat on both intake and exhaust.