B58B30 A90 Supra
 
Introducing the baddest valvetrain parts for your a90supra
 
One piece forged black nitrated stainless intake valves and sodium filled inconel valves for the exhaust side.
Match these valves with #supertech springs and titanium retainers, you will be on your way to an indestructible motor. 
 
12 Sodium Inconel Valves
12 Stainless Intake Valves
1 set of 5/6mm billet keepers
24 Beehive springs and titanium retainers
24 Valve seals