Mazda L3 2.3 DISI High RPM Beehive Valve Springs and Titanium Retainer Kit KVS17X-TInstall at O. E. M 37. 00mm (1. 456") to give 84lb closed pressure. Coil bind 24. 00mm KVS17X T MAZDA L3 2. 3 'PACALOY' Beehive spring and Titanium Retainer Kit. Suits high horsepower high rpm turbocharged engines. Retainer 50% lighter than OEM. Installs at O. E. M 37. 00mm (1. 456") to give 84lb closed pressure. Coil bind 24. 00mm