Brembo Sport Slotted Front Rotors Honda Civic Si 04-05 DX LX EX 06-10 These discs combine the advantages in terms of durability of the best street discs with superior performance suitable for moderate track use Brembo Sport brake discs are made from high-carbon cast iron for improved thermal and mechanical resistance. hey also feature exclusive pillar venting technology, which improves cooling capacity and increases resistance to cracking caused by thermal shock by over 40%. All the discs of the Sport range are zinc plated, which improves corrosion resistance and also gives the car a more aggressive look Diameter: 262 | Hub Bore: 64 | Offset: 41