Pontiac GTO Brake Rotor (1) - Front - DBA - 5000 Series HD - 2004. This direct-replacement front rotor is the DBA 5000 Series HD option designed for drivers who want the proven 5000 Series technology with a smooth OEM-style finish.

The DBA 5000 Series is a composite two-piece design that pairs high-carbon cast-iron rings with aerospace-grade T6061-T6 aluminum hats, joined with National Aerospace Standards (NAS) bolts and crimp nuts. The 5000 Series HD variant retains the performance characteristics of the 5000 line while providing a flat, non-slotted, non-drilled surface preferred by many street and track owners. The aluminum hat reduces unsprung weight and helps manage disc-to-hub heat transfer, while the cast-iron ring provides consistent braking surface and wear characteristics. Suitable for high performance street use, track day and club racing or rally applications, the 5000 Series HD offers a balance of durability and thermal control without added surface machining.

Features

• Composite 2-piece construction: cast-iron ring + aerospace-grade aluminum hat (T6061-T6).
• NAS-specified bolts and crimp nuts for secure assembly.
• 5000 Series performance technology with HD smooth, OE-style rotor face (no slots/drills).
• Reduced unsprung weight and improved heat isolation from hub via aluminum hat.
• Available as full assemblies or replacement rings/hats through DBA service options.

If you have questions or want to confirm fitment, call us directly — we’re happy to help. We have two locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA). If you are considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov