All new GSC Power-Division Beehive Spring Kit with Titanium Retainers for the Subaru BRZ and Scion FRS. The 5056 Spring kit uses Chromoly spring seats to locate the ovate wire beehive spring and utilizes lightweight, precision Titanium retainers. This is absolutely the most lightweight, strongest spring kit for the FA20 platform. Capable of 35 PSI of Boost at 9,500 RPM, it’s a must have for high boost, high RPM builds.
- Sold as a set of 16
- Kit Includes Springs, Spring Seats and Ti Retainers.
- 88 LBS @ Seat/ 211LBS @.400" Lift
The quality of these GSC valve springs reminded me of my Suzuki GSXR 1000 valve springs. These look extremely top-notch & the clamping force to get the retainers in is absolutely crazy heavy. if you're building your short block do not forget to get these for your heads. Also noted if you do purchase these the valve installer/remover tool that you can typically use on the STI does not install the retainers on this new FA engine. You will need a valve spring compressor what's a good window. As you can see in the picture the valve stem sticks up quite a bit.