butthead

Hey, I've got a R33 skyline GTR with two t28 HKS turbos, 100mm HKS front mounted intercooler HKS air pods, APEXI pc, HKS 3.5inch exhaust system. it's currently running 21 pounds of boost and am wondering if this is going to be a problem in the futre with the well-being of the engine let me know Thanx

its normal, i've opened up the gear box & found out it was only the clutch rattling in there.