Product Description
Stop Tech Slotted & Drilled Rotor (Left Front) 127.34093L, 2007-2012 BMW 335i StopTech Brake Rotors - SportStop Drilled & Slotted: StopTech recognizes that great brakes need to look as good as they perform. Performance wheels and tires are best complemented with StopTech SportStop Cross-Drilled & Slotted rotors. SportStop Drilled & Slotted brake rotors prevent glazing of the pads, add bite and improve wet and dry braking performance. Every SportStop Drilled & Slotted brake rotor is produced from a high quality Centric Parts blank casting and finished in a durable e-coating for corrosion resistance. SportStop Drilled & Slotted rotors look great behind custom wheels, improve the initial bite of the brake pads, and help wipe away the debris that forms between the pad and the disc. A set of SportStop cross-Drilled & Slotted rear replacement rotors is a great way to match the aesthetics of a StopTech Big Brake Kit with the cross-Drilled & Slotted rotor option. *E-Coated Finish* Every SportStop rotor is finished with black e-coating on both sides of the hat, inside the the cooling vanes, and on the outside edge. E-coating is a superior electro-statically applied finish designed to withstand 400 hours of salt water exposure without rusting. This is especially important on both mounting faces of the hat where it touches the hub flange and back face of the wheel. Any accumulation of rust in these area can lead to installed lateral run out issues. *Power Alloy Metallurgy* Power Alloy metallurgy is exclusive feature of SportStop rotors. In specific vehicle applications, StopTech works with foundry partners to increase the molybdenum or carbon content of the castings, and to carefully control the cooling rate during production to reach targets for hardness and tensile strength. *Cooling Vane Design* Nearly all SportStop Cross-Drilled & Slotted rotors have unique Drilled & Slotted hole patterns for the left and right sides of the vehicle. For these directional patterns, straight vane or pillar vane rotors are used to ensure that a Drilled & Slotted hole never touches a cooling vane. MANUFACTURER OVERVIEW StopTech was founded in March of 1999 with a singular mission: Become the leading manufacturer and supplier of high performance brake components and systems. United by their passion for racing and high performance vehicles, the founding staff sought to challenge the status quo in known brake technology, and set new paradigms for brake upgrade systems. In service of the mission, and as a direct result of our ongoing brake research, StopTech has to date received three patents in brake technology and has one patent currently pending. StopTech is the first aftermarket brake company to offer balanced front brake upgrades, engineered to dramatically improve overall braking performance while remaining compatible with the stock OE rear brakes. This has significantly advanced the state of art in aftermarket brake upgrades. StopTech is now the worldwide leader in Balanced Brake Upgrades™ for production cars, with over 277 platform offerings. The company consistently wins braking contests performed by independent publications, and is now the dominant, preferred brake system in the SPEED World Challenge® Touring Car Series, the most competitive, production based sprint race series in North America. The company also participates in Grand-Am® Cup, the premier production based endurance racing series in North America. Core competencies: StopTech engineers and manufactures high performance brake rotors, calipers, DOT compliant stainless steel lines, and brake upgrade systems for the racing and performance street markets. The company distributes OE aftermarket rotors, brake pads and brake fluid. StopTech's ST-40 and ST-60 calipers are manufactured using a squeeze-forged process. Caliper bodies, hats, and brackets are machined to ISO standards at StopTech's manufacturing facilities in Torrance, California using the latest CNC machines that feature active tooling. StopTech has received the prestigious TüV approval in Europe for a number of its offerings, and has been selected as the exclusive brake supplier by a major OE aftermarket division. The future vision of StopTech is to maintain focus on its original mission. In doing so, the company will continually innovate significant improvements to brake technology for street and racecars, for enthusiasts and professionals alike. Part Number: 127.34093L Notes: Drilled & Slotted Sportstop Rotor Manufacturer: StopTech Position: Front-Left Product Category: Brake Rotors
