Unlike a manual, the T1 has two input shafts (one for odd gears, one for even). While you accelerate in 3rd gear, the T1 pre-selects 4th on the secondary clutch. The shift is a simple handshake: one clutch opens, the other closes. The C8’s T1 uses wet clutches (bathed in oil) for better cooling and launch control durability.

: While upper brachial plexus injuries (C5-C7) are common in sports and accidents, isolated C8-T1 injuries are rare, accounting for only about 3% of traumatic supraclavicular brachial plexus cases. Modern Treatment and Nerve Transfers

If you meant the assault rifle from Black Ops Cold War (C8) played in Tier 1 hardcore mode.

If you meant the 2020+ Chevrolet Corvette C8 and its 1st generation Dual Clutch Transmission (T1).