StopTech 07-08 Audi RS4 Replacement Right Drilled 325x22mm Aero Rotor - 129.33115.16

StopTech AeroRotor Replacement Kits ARK are designed to replace your vehicle's original factory rotors; while retaining the factory brake calipers. Although the ARK is the same diameter and thickness as the factory rotors; it offers improved cooling; braking; and handling. The directional; floating AeroRotors allow independent expansion of the rotor and hat without "coning;" thanks to elongated drive pin holes. ARK components include AeroRotor friction rings with patented internal vane design; pre-assembled to billet aluminum AeroHats with directional stand-offs that optimize cooling airflow. The patented AeroRotor vane design pushes up to 80 percent more air than factory rotors for better cooling and reduced fade on the track. The aircraft-grade aluminum hats and 2-piece AeroRotors are up to 8 pounds lighter than stock rotors; allowing faster acceleration and deceleration; and improved handling. StopTech AeroRotors are available slotted or cross-drilled. These slots or holes allow better dissipation of heat; friction material and debris; assuring that fresh pad material is in contact with the rotor every time the brakes are applied. An optional anti-corrosion; zinc finish is available for customers in cold climates; where salt and chemicals are used to melt snow and ice. The zinc coating also benefits customers who prefer no visible surface rust on the vanes and outer circumference of the rotors. StopTech AeroRotors are 100 percent made in the USA.

This Part Fits:

Year	Make	Model	Submodel
2007-2008	Audi	RS4	Base
2008	Audi	RS4	Cabriolet
2003	Audi	RS6	Base

Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. 

About Stoptech-

StopTech is a prominent manufacturer of high-performance braking systems and components, founded in 1999. The company's vision was clear from the outset: to design and produce top-tier brake systems for both street and track use, combining performance with reliability. StopTech has since grown to become a recognized leader in the brake industry, known for its cutting-edge technologies and contributions to motorsport.

Stoptech Key Features

• Balanced Brake Upgrades: StopTech revolutionized the aftermarket brake industry by being the first company to offer Balanced Brake Upgrades. This innovation involves upgrading the vehicle’s front brakes while ensuring compatibility with the rear original equipment (OE) brakes. This approach provides better overall braking performance by optimizing brake balance, rather than just improving front or rear braking force independently. These systems significantly enhance braking power, reduce fade, and increase overall safety and performance, particularly in high-stress situations like racing or aggressive street driving.

• Racing DNA: With motorsport at its core, StopTech has established itself as a leading supplier of brake systems in competitive racing environments. The company has a notable presence in series such as the SPEED World Challenge® Touring Car Series and the Grand-Am® Cup. The high-performance brake systems they offer are designed to withstand the extreme demands of racing, providing drivers with superior stopping power and control.

• Manufacturing Excellence: All StopTech products are engineered and manufactured at the company’s facilities in Southern California, utilizing ISO-certified standards. The parts are machined with the latest CNC (Computer Numerical Control) machines, which feature active tooling to ensure precision and quality. The brand’s commitment to quality is further affirmed by the approval of many of their products from TÜV, a leading European certification organization, which guarantees adherence to strict safety and quality standards.

• Focus on Innovation: StopTech has remained at the forefront of braking technology through continuous innovation. The company strives to push the boundaries of braking performance, with an emphasis on improving safety, durability, and heat dissipation—critical factors in high-performance braking. As part of this, StopTech continues to refine its brake pads, rotors, calipers, and fluid, ensuring their products remain competitive and effective in demanding conditions.

What Stoptech Offers

StopTech’s product range includes:

• Big Brake Kits (BBKs): These kits offer larger, more powerful brakes to improve overall performance and heat dissipation.
• Brake Pads: A variety of high-performance compounds are available for both street and track applications, designed to optimize braking power while minimizing fade.
• Rotors: StopTech produces slotted, drilled, and solid rotors designed for improved heat dissipation and performance.
• Calipers: The company manufactures both lightweight and heavy-duty calipers to suit different types of vehicles and racing needs.
• Brake Fluids: High-performance fluids designed to withstand extreme temperatures and maintain braking performance under stress.

About Fidanza Performance-

​Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the Fidanza Marketplace which sells other manufacturers quality high performance parts!