As already stated- pads and fluid. Many, many track days and never had an issue with brake fade expect when I ran out of front pads. Learned a lesson that day.

 

what pads should he get?

 

I'm happy with Ferodo DS2500 + Good Oil + Goodridge Steel Brake Lines

If you need rotors try Project Mu.

 

I use Carbotech from Rick's. XP10 for the front and XP8 for the rear.
Rick's Carbotech Brake Pads

 

If you paid attention to his post, you would realize he has a euro s2k and his name is vassilis. His country of origin is likely not the USA.

 

All u need is ate super gold and some decent pads. Oem CR would do or something like gloc.

 

K System pro from Poland has an affordable and good front BBK, don't need to upgrade rear calipers & discs, only pads, fluid and lines

Big Brake Kit 324x30mm + Brembo – front axle S2000 | K-SYSTEM.pro

BBK

 

That looks really nice. But the rear, solid, unvented rotors on our cars are known to overheat and cook the balljoints on our cars. If anything, the rear needs an upgrade more than the front. If you aren't cracking front rotors, you probably don't need a front upgrade.

 

Those brembo calipers don't look like any that I've seen before.

 

This is a oem caliper from renault sport.