GSC Power Division Beehive Valve Springs & Titanium Retainers for BMW M240 (G42) & Toyota Supra MKV (A90) B58 B58B30C Engines

The GSC Power-Division Beehive Valve Spring Kit with Ti Retainers for the Toyota / BMW B58 includes 24 Titanium Retainers (12 Intake and 12 Exhaust) and 24 Beehive Valve Springs. Our beehive spring utilizes advanced material heat treatment methods for superior load loss capabilities. These springs have the highest level of spring load retention while still maintaining good fatigue throughout the life of the spring. Beehive springs allow for the use of a smaller, lighter retainer allowing for higher RPM and more valve control. 

GSC5091 Beehive Valve Spring Kit with Ti Retainer Kit
Setup	Coil Bind (in)	Install Height (in)	Seat Pressure (lbs)	Open Pressure, 11.0mm Lift	Maximum Valve Lift (in/mm)
Beehive	0.900	1.417	100	227lbs @ 0.984"	0.472"/12mm

Max RPM: 9300 RPM
Max Boost: 70 PSI