StopTech 14-15 BMW M3 / M4 Rear BBK w/ Trophy Anodized ST-40 Calipers Slotted 380x32mm Rotor - 83.B38.0058.R1

StopTech was the first to offer balanced brake upgrades for production cars and remains the worldwide leader with over 650 platform offerings to dramatically improve overall braking performance.

In 2013, StopTech earned full ISO/TS 16949:2009 Quality Management System certification for the design and manufacture of automotive brake systems and components, allowing the company to supply OEM vehicle assembly plants directly in a Tier 1 relationship.

StopTech Balanced Brake Upgrades^® provide that supercar look while delivering superior control and stopping distance equal to or better than stock brake systems. They are the ultimate brake system upgrade to support extended track lapping sessions or aggressive street driving in powerful cars.

StopTech Balanced Brake Upgrades^® are fully engineered, bolt-on systems for production cars and trucks and production-based competition vehicles, requiring little or no modification to the chassis or suspension. The more than 650 available applications include forged, billet or squeeze-forged calipers, street performance pads, caliper mounting brackets, directional patented AeroRotors^®, DOT-compliant stainless steel brake lines and all hardware required for a complete installation. StopTech brake systems are engineered, manufactured and tested utilizing the most advanced technology available today.