StopTech Aero Brake Rotors Front Left 2015-2019 BMW M3/M4 StopTech Aero Brake Rotors Front Left 2015-2019 BMW M3/M4 Stoptech FRONT LEFT - Price is for ONE Rotor   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 aluminium AeroHats with directional stand-offs that optimize cooling airflow. The patented AeroRotor vane design pushes up to 80% 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% made in the USA. StopTech AeroRotor Rings The patented 2-piece AeroRotor assembly uses uniquely designed and patented AeroVanes inside the disc to optimize airflow through the rotor. This improved directional design minimizes turbulence and flows up to 61 percent more air than any other rotor tested. The result is up to 80 percent better airflow over original equipment rotors and 10-30 percent better airflow than other directional vane racing rotors currently available. Better airflow equals better cooling, and better cooling means less fade and better overall brake system performance. StopTech AeroRotors also feature a proprietary alloy chemistry. By adding molybdenum to the gray iron, carefully targeting a narrow range of hardness and tensile strength values, and controlling the cooling rate of the rotor after casting, StopTech produces a friction ring with added crack resistance as well as improved functionality. Drive Pins Super strong Inconel drive pin washers – as used in aircraft engines and other racing applications – are practically impervious to oxidation or corrosion even at extreme temperatures. Street rotors use a curved drive pin washer to add tension to the hat assembly, reducing rattle. Race applications use a flat washer that allows full freedom of movement between hat and friction ring. StopTech AeroHats feature directional stand offs to further improve airflow and cool the rotor. Elongated drive pin slots allow separate expansion of rotor and hat to resist coning. Tapered slots allow evacuation of debris that might otherwise accumulate with straight-cut slots. Drive pins used to affix the hat to the rotor have a slightly out-of-round hole and are self-locking. They withstand high temperatures much better than typical lock washers and allow drive pins to move freely, yet securely, as hat and rotor expand at different rates. In certain applications where packaging is an issue – such as on the Chevrolet Corvette – StopTech uses slant-head drive pins to provide improved clearance as pads wear.

StopTech Aero Brake Rotors Front Left 2015-2019 BMW M3/M4

Code: 129.34163-1
$695.00
In Stock
Add to Wishlist Add to Compare
FRONT LEFT - Price is for ONE Rotor   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 aluminium AeroHats with directional stand-offs that optimize cooling airflow. The patented AeroRotor vane design pushes up to 80% 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% made in the USA. StopTech AeroRotor Rings The patented 2-piece AeroRotor assembly uses uniquely designed and patented AeroVanes inside the disc to optimize airflow through the rotor. This improved directional design minimizes turbulence and flows up to 61 percent more air than any other rotor tested. The result is up to 80 percent better airflow over original equipment rotors and 10-30 percent better airflow than other directional vane racing rotors currently available. Better airflow equals better cooling, and better cooling means less fade and better overall brake system performance. StopTech AeroRotors also feature a proprietary alloy chemistry. By adding molybdenum to the gray iron, carefully targeting a narrow range of hardness and tensile strength values, and controlling the cooling rate of the rotor after casting, StopTech produces a friction ring with added crack resistance as well as improved functionality. Drive Pins Super strong Inconel drive pin washers – as used in aircraft engines and other racing applications – are practically impervious to oxidation or corrosion even at extreme temperatures. Street rotors use a curved drive pin washer to add tension to the hat assembly, reducing rattle. Race applications use a flat washer that allows full freedom of movement between hat and friction ring. StopTech AeroHats feature directional stand offs to further improve airflow and cool the rotor. Elongated drive pin slots allow separate expansion of rotor and hat to resist coning. Tapered slots allow evacuation of debris that might otherwise accumulate with straight-cut slots. Drive pins used to affix the hat to the rotor have a slightly out-of-round hole and are self-locking. They withstand high temperatures much better than typical lock washers and allow drive pins to move freely, yet securely, as hat and rotor expand at different rates. In certain applications where packaging is an issue – such as on the Chevrolet Corvette – StopTech uses slant-head drive pins to provide improved clearance as pads wear.
FRONT LEFT - Price is for ONE Rotor   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 aluminium AeroHats with directional stand-offs that optimize cooling airflow. The patented AeroRotor vane design pushes up to 80% 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% made in the USA. StopTech AeroRotor Rings The patented 2-piece AeroRotor assembly uses uniquely designed and patented AeroVanes inside the disc to optimize airflow through the rotor. This improved directional design minimizes turbulence and flows up to 61 percent more air than any other rotor tested. The result is up to 80 percent better airflow over original equipment rotors and 10-30 percent better airflow than other directional vane racing rotors currently available. Better airflow equals better cooling, and better cooling means less fade and better overall brake system performance. StopTech AeroRotors also feature a proprietary alloy chemistry. By adding molybdenum to the gray iron, carefully targeting a narrow range of hardness and tensile strength values, and controlling the cooling rate of the rotor after casting, StopTech produces a friction ring with added crack resistance as well as improved functionality. Drive Pins Super strong Inconel drive pin washers – as used in aircraft engines and other racing applications – are practically impervious to oxidation or corrosion even at extreme temperatures. Street rotors use a curved drive pin washer to add tension to the hat assembly, reducing rattle. Race applications use a flat washer that allows full freedom of movement between hat and friction ring. StopTech AeroHats feature directional stand offs to further improve airflow and cool the rotor. Elongated drive pin slots allow separate expansion of rotor and hat to resist coning. Tapered slots allow evacuation of debris that might otherwise accumulate with straight-cut slots. Drive pins used to affix the hat to the rotor have a slightly out-of-round hole and are self-locking. They withstand high temperatures much better than typical lock washers and allow drive pins to move freely, yet securely, as hat and rotor expand at different rates. In certain applications where packaging is an issue – such as on the Chevrolet Corvette – StopTech uses slant-head drive pins to provide improved clearance as pads wear.

Sample Return Policy

 1. Returns

Option 1 – No Refunds/Exchanges:

We do not accept returns or exchanges unless the item you purchased is defective. If you receive a defective item, please contact us at [•] with details of the product and the defect. You can send the item you consider defective to:

Upon receipt of the returned product, we will fully examine it and notify you via e-mail, within a reasonable period of time, whether you are entitled to a refund or a replacement as a result of the defect. If you are entitled to a replacement or refund, we will replace the product or refund the purchase price, using the original method of payment.

Option 2 – Refunds Permitted:

We accept returns. You can return unopened items in the original packaging within 30 days of your purchase with receipt or proof of purchase. If 30 days or more have passed since your purchase, we cannot offer you a refund or an exchange.

Upon receipt of the returned item, we will fully examine it and notify you via email, within a reasonable period of time, whether you are entitled to a return. If you are entitled to a return, we will refund your purchase price and a credit will automatically be applied to your original method of payment.

Only regular priced items may be refunded. Sale items are non-refundable.

To follow-up on the status of your return, please contact us at [•].

2. Exchanges [Delete if you select Option 1]

We only exchange goods if they are defective or damaged. In circumstances where you consider that a product is defective, you should promptly contact us at [•] with details of the product and the defect. You can send the item you consider defective to:

Upon receipt of the returned product, we will fully examine it and notify you via e-mail, within a reasonable period of time, whether you are entitled to a replacement as a result of the defect. If you are eligible, we will send you a replacement product.

3. Exceptions [May be included if you select Option 2]

Some items are non-refundable and non-exchangeable. These include: [list items]

4. Shipping

To return the item you purchased, please mail it to:

Refunds do not include any shipping and handling charges shown on the packaging slip or invoice. Shipping charges for all returns must be prepaid and insured by you. You are responsible for any loss or damage to hardware during shipment. We do not guarantee that we will receive your returned item. Shipping and handling charges are not refundable. Any amounts refunded will not include the cost of shipping.