The DBA 5000 Series slotted ring assembly for 2005-2009 Audi A4 Quattro front brakes is a two-piece direct-replacement rotor combining high-carbon cast-iron rings with aerospace-grade T6061-T6 aluminum hats secured with NAS hardware. The T3 slotted face option provides enhanced cooling and structural support while aluminum hats reduce unsprung weight; DBA offers both complete assemblies and replacement rings.
Product Description
DBA 05-09 Audi A4 Quattro Front 5000 Series Slotted Rotor w/Black Hat
Additional Product Details
Sharing all the benefits of the 4000 Series, DBA's 5000 Series rotors are a composite 2 piece direct replacement brake rotor. DBA uses only the highest quality materials to ensure optimal performance under the most strenuous circumstances.
5000 Series T3 is the ultimate in direct replacement 2 piece performance brake rotors. Featuring all the benefits of the 5000 Series along with DBA?s patented world renowned T3 bi directional slot design.
Manufacturer Description
Sharing all the benefits of the 4000 Series, DBA's 5000 Series rotors are a composite 2 piece direct replacement brake rotor. DBA uses only the highest quality materials to ensure optimal performance under the most strenuous circumstances, combining high carbon cast-iron rings with aerospace grade aluminum hats (T6061-T6), held together with National Aerospace Standards (NAS) bolts and crimp nuts. The 5000 Series share all of the performance technology featured in the 4000 Series, with the added benefits of further weight reduction and improved heat management via aluminum hats. The use of aerospace grade aluminum hats reduces the unsprung weight of the brake rotors, while allowing for uniform radial disc expansion through the cast iron rings, and reduced heat transfer from disc to hub via the aluminum hats. DBA offers both complete assemblies for first time replacement (hats and flat discs bolted together) along with replacement hats and flat disc rotors (rings). This allows drivers to re-use their DBA 5000 Series hats with DBA replacement flat discs (rings). DBA recommends the 5000 Series for high performance street vehicles, track day and club racing and rally applications.