The KzCMC is the solution to eliminate any gear lockout when shifting your Civic 1.5T/Si at high RPM, especially with an upgraded Clutch Kit! We've tested the KzCMC on our 3 shop Si's, each one has seen track use and gets daily'd so we definitely have hands on real world experience to confirm that this product works!
If it's available for purchase, then it's in stock!