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StopTech 81.345.9921 - Drilled Aero-Rotor Kit Front

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This part fits

  1. 2017 Ford Mustang GT
  2. 2016 Ford Mustang GT
  3. 2016 Ford Mustang GT Premium
  4. 2015 Ford Mustang GT
  5. 2015 Ford Mustang GT 50 Years Limited Edition
  6. 2015 Ford Mustang GT Premium
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About this product

Part #: 81.345.9921

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.

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See what our community says about stoptech products

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What made you choose this particular product?
Quality and Price
Is this your first time buying from this brand? Did you consider other brands?
yes first time and yest also considered other brands
Was it easy to install? Any installation tips that will help others?
Yes
Once you've had a chance to use the product, did it meet your expectations?
Yes
View on Juan's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
The car's braking performance was terrible.
Is this your first time buying from this brand? Did you consider other brands?
No, I had it on my RSX-S
Was it easy to install? Any installation tips that will help others?
Paid a professional to install it.
Once you've had a chance to use the product, did it meet your expectations?
Yes, braking performance improved.
View on Jesus's build
Anthony Garcia

375

Anthony Garcia
2007 BMW 3 Series
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What made you choose this particular product?
I love the way the 335i comes to a seemlessly smooth stop from any speed. Slotting a rotor helps to release gases that build up between the rotor surface and an out-gassing brake pad. Without an escape, this thin layer of gas will cause a delay until the pad cuts through gas layer. The slots in our rotors allow the gases to escape giving better braking performance. Cross-drilling a rotor is a way to improve initial pad bite. With the additional leading edges at each hole, the pad is able to grab the rotor just a little bit harder
Is this your first time buying from this brand? Did you consider other brands?
View on Anthony's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
The rotors are definitely doing their job. Heat soak is not an issue at all for these unlike the stock rotors. I would highly recommend.
Is this your first time buying from this brand? Did you consider other brands?
Not my first time buying Stoptech. I was hoping for EBC rotors but Stoptech were the only ones that had slotted rotors for the 2014 Honda Accord.
Was it easy to install? Any installation tips that will help others?
Just like any other rotors that use a single piston caliper. Very easy to install.
Once you've had a chance to use the product, did it meet your expectations?
Met my expectations and then some.
View on Haris's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
awesome company
Is this your first time buying from this brand? Did you consider other brands?
yes and will do it agian
Once you've had a chance to use the product, did it meet your expectations?
met and exceeded
View on Ryan's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

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