Nissan Skyline R34 Pull Type SPEC Carbon Twin Clutch Connecting Rod which gives you a bit

which gives you a bit better idea what they are

The burner is equipped with 2 switches to allow flexibility of use by also functioning as a CN2 based datalogger for OBD1 ecu's in addition to its original use of a chip burner

Custom brackets can also be provided for application specific fitment

For K20 Engines

09-10 Corolla XRS 2

Nissan Skyline R34 Pull Type SPEC Carbon Twin Clutch Connecting Rod which gives you a bitFits: 98 02 Skyline GTR Pull Type Clutch The SPEC carbon twin clutch kit brings full carbon on carbon technology meaning smooth drivability, durability, and astonishing holding power. Clutch Torque Rating Carbon Twin 1100