GSC Beehive Spring Set w/ Titanium Retainers - 04-21 STI / 02-14 WRX

GSC Power-Division Beehive Springs are the result of some of the most advanced manufacturing techniques in the industry. GSC uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. This provides the spring with the highest level of spring load retention while still maintaining good fatigue for the life of the spring.  The Beehive spring has been designed to be more stable than standard single or dual cylindrical springs. The smaller and lighter retainer used on the beehive valve spring allows for higher RPM and more valve control. Here are more features: Rev faster Lighter components More durable design Less stress on valvetrain components Lower spring frequency for more precise valve control. More valve control equals more aggressive cam profiles All of these items help to return more power for you to enjoy The GSC 5043 Beehive valve spring set, and Grade 5 Titanium retainers. This kit is capable of 9500+ RPMS, with as much as 11.5mm lift cams.