Brake Rotors - 2 Piece Quality Performance for Your Vehicle

What This Collection Covers

Two piece brake rotors separate the rotor face from the center mounting hat, connecting the two with floating pins or bolts instead of casting them as a single unit. This design reduces unsprung and rotational weight versus a comparable one piece rotor, allows the rotor face to expand independently under heat without warping the hat, and lets a worn or damaged rotor ring be replaced without buying a new hat. This collection spans direct fit slotted and drilled two piece rotors for daily driven and track driven performance cars, and full replacement rotor and hardware sets for big brake kit builds.

Slotted Rotors

Slotted two piece rotors cut narrow grooves across the rotor face that clear off-gassing and debris from the pad surface during hard braking, improving initial bite and reducing glazing on track and towing applications. Slotted rotors are the most common choice for street and track dual purpose vehicles.

Drilled and Slot and Drilled Rotors

Drilled rotors add through holes for additional heat dissipation and a more aggressive appearance, while slot and drilled rotors combine both treatments. Drilled treatments are best suited to lighter duty street use since repeated extreme heat cycling can accelerate crack propagation at the drilled holes on the most aggressive track applications.

Mopar Hellcat, Trackhawk, and Durango Rotor Platforms

DBA 5000 Series and Rotora Street Challenge two piece rotors sized for Jeep Grand Cherokee Trackhawk, Dodge Durango SRT and Hellcat, Dodge Challenger and Charger Hellcat and SRT, and Dodge Viper are among the top selling applications in this collection, offered in black hat and natural hat finishes with matched front and rear sets.

Sport Compact and Import Rotor Platforms

DBA and EBC Racing two piece rotors for Mitsubishi Lancer Evo, Nissan 240SX, Lexus GS350, Lexus RC-F, Audi TT RS, and similar sport compact and import chassis pair with big brake kit calipers and are available in gold, black, and natural hat finishes.

Muscle Car and Sports Car Rotor Platforms

DBA 5000 Series T3 rotors for Chevrolet Camaro ZL1 and Chevrolet Corvette Z51 pair with factory and aftermarket calipers for track and street use, offered with and without NAS nut compatibility for factory hub hardware.

Floating Rotor Conversion Kits

EBC Racing floating conversion kits convert a factory fixed rotor setup to a full floating two piece design on applications such as the Lexus RC-F, reducing weight and improving heat management for track use without requiring a full big brake kit caliper swap.

Wilwood Standalone Rotor Rings and Hats

Wilwood sells rotor rings and hats separately for custom big brake builds, specified by diameter, thickness, and bolt pattern (such as 12 on 9.75 inch or 12 on 8.75 inch patterns), allowing builders to mix rotor sizes with Wilwood forged calipers and custom hub adapters.

Top Two Piece Rotor Brands

• DBA. 5000 Series T3 slotted and drilled two piece rotors with black or gold hats
• EBC Racing. SG Racing series two piece and floating conversion rotors
• Rotora. Street Challenge two piece rotor and big brake kit rotors
• Wilwood. GT60, SRP48, and HD48 standalone rotor rings and hats
• Brembo. GT and GT-R series two piece rotor components
• StopTech. AeroRotor and direct fit two piece rotor kits

How to Choose the Correct Two Piece Rotor

• Confirm the exact year, make, model, trim, and axle position (front or rear)
• Match rotor diameter and thickness to the intended caliper and bracket
• Verify bolt pattern and hat offset against the hub and caliper mounting bracket
• Choose slotted, drilled, or slot and drilled based on street versus track use
• Confirm hat material (aluminum versus steel) and finish color if matching a kit
• Check whether the rotor requires NAS nuts or factory retaining hardware
• Confirm whether replacement rings are sold separately from the hat for future service
• Match rotor pairs front to rear for consistent brake bias unless upgrading one axle only
• Verify wheel clearance for larger diameter two piece rotors before ordering
• Read fitment notes for any required spacers or big brake kit components

Common Questions

What is the advantage of a two piece rotor over a one piece rotor?

Two piece rotors typically weigh less than a comparable one piece rotor because the hat is often aluminum instead of cast iron, reducing unsprung and rotational mass. The floating connection between the ring and hat also allows the rotor face to expand under heat independently of the hat, which can reduce warping and rotor cracking on track driven vehicles.

Can I replace just the rotor ring without buying a new hat?

Yes, on most two piece rotor designs the ring is a separate wear item that can be replaced independently of the hat once it reaches minimum thickness or develops cracking. This is a key cost advantage of two piece rotors for track driven vehicles that go through rotors more frequently.

Are slotted or drilled rotors better for daily driving?

Slotted rotors are generally the better choice for daily driven and dual purpose street and track vehicles because they clear pad debris without the crack propagation risk associated with drilled holes under repeated extreme heat cycling. Drilled rotors are best reserved for lighter duty street use or vehicles that see limited track time.

Do two piece rotors require special calipers?

Not necessarily. Direct fit two piece rotors for platforms like Jeep Trackhawk or Camaro ZL1 are engineered to work with the factory or matched aftermarket caliper. Custom two piece rotor rings and hats used in big brake builds typically require a matched caliper and bracket from the same or a compatible kit.

What hat finishes are available on two piece rotors?

Common finishes include black, natural aluminum, and gold anodized hats. Finish is primarily cosmetic and does not affect braking performance, though anodized and coated finishes can offer additional corrosion resistance in wet or salted road conditions.

How long do two piece rotors last?

Street driven two piece rotors typically last 30,000 to 70,000 miles depending on pad compound and driving style, similar to comparable one piece performance rotors. Track driven rotors wear faster and should be inspected for minimum thickness and hat hardware torque after every few track events.

What does a floating rotor conversion kit include?

A floating rotor conversion kit typically includes the rotor ring, aluminum hat, floating pins or bolts, and mounting hardware needed to convert a factory fixed one piece rotor to a full floating two piece design, without requiring a caliper change on most applications.

Do two piece rotors need re-torquing after installation?

Yes. Floating pin or bolt hardware connecting the ring to the hat should be checked and re-torqued to the specified value after the first several hard heat cycles or track sessions, since new hardware and rotor components can settle slightly under initial heat exposure.

Can I run two piece rotors with the factory brake lines?

Direct fit two piece rotor upgrades that retain the factory caliper and mounting position typically work with factory brake lines. Big brake kit rotor and caliper combinations that change caliper position often require new stainless steel lines sized for the new mounting location.

Are two piece rotors worth it for a street driven car?

For most street driven vehicles, the weight savings and heat management benefits of a two piece rotor are a nice upgrade but not strictly necessary compared to a quality one piece slotted rotor. Two piece rotors become more valuable on heavier vehicles, high horsepower platforms, and any car that sees regular track or aggressive mountain driving.

Why Buy Two Piece Brake Rotors from Black Ops Auto Works

Black Ops Auto Works stocks 309 two piece brake rotor SKUs across Mopar Hellcat and Trackhawk, sport compact, and muscle car platforms with real fitment data, competitive pricing, and support from staff who build these vehicles themselves. Products are filterable by year, make, model, trim, and axle position to confirm the correct rotor diameter, bolt pattern, and hat finish before ordering.

For related upgrades, browse our brake rotors, brake rotors OE, brake rotors slotted, brake rotors slot and drilled, brake kits, big brake kits, DBA, Brembo, Wilwood, and StopTech.