Just one is not enough
Unfortunately, when subjected to extreme use, just one TY3 disc is not able to sustain the increased force required by the brake system as a whole. TY3 discs are recommended for those who want to modify their car for a more dynamic performance on the road and sometimes on the track on an occasional track day.
However, if the thermal stress that the brake discs are subjected to is increased significantly (this depends a lot on what they are used for and how), relying solely on TY3 discs may not be the best choice since these are the same size as the original discs.
In these cases, using only sports discs and pads such as TY3 and HP2 may not be enough. You may need to use a
Brembo GT upgrade kit capable of adding opposed-piston calipers and especially two-piece composite oversized discs which can dissipate heat much better than the original discs.
Specially designed for track sessions, Brembo GT kits have discs with a wider diameter and in many cases consist of two pieces with a cast iron braking band and aluminum bell, a solution that allows the braking band to expand when subjected to thermal stress without deforming. Aluminum opposed-piston brake calipers and high-performance pads, which are included in the specific kits, contribute to the high performance. This results in the pressure on the brake pedal being constantly stable and the stress caused by heat being reduced.