The 034Motorsport 348mmx36mm 2-Piece Floating Front Brake Rotor Upgrade for BMW G20 M340i and Toyota A90/91 GR Supra is a complete replacement brake rotor, designed to work flawlessly with the factory front calipers. Weighing in at approximately 25.0lbs, each rotor reduces rotational weight by 3.1lbs on each corner over the factory 28.10lb rotors! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture heat, while utilizing 48 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.

NVH Levels: None-Low

NVH is the measurement of how much noise, vibration, & harshness gets transmitted into the cabin of your vehicle. The 034Motorsport 2-Piece Brake Rotors transfer none to low amounts of noise to the cabin based on user feedback. This NVH is relative to the brake pad installed with the brake rotor. Different brake pads will have different resonances when passing over a rotor with slots, which can sometimes make a slight whirring noise. The sounds from these rotors are the direct result of the performance improvements they make to the braking. The J-slots release gas from under the brake pad, and the high-density directional aero veining in the rotors move substantial air, all resulting in more sounds of air moving. The installation of other suspension components can also affect the NVH transferred. NVH is subjective, so some users may find NVH to be increased or decreased from our rating. If you are experiencing higher than quoted NVH with this product, please [email protected] further assistance.

Product Description:

The 034Motorsport 348mmx36mm 2-Piece Floating Front Brake Rotor Upgrade for BMW G20 M340i and Toyota A90/91 GR Supra is a complete replacement brake rotor, designed to work flawlessly with the factory front calipers. Upgrading your front rotors will increase overall braking performance in street, track, and HDPE driving conditions, as they keep your brakes cool and strong all day long!

Weighing in at approximately 25.0lbs, each rotor reduces rotational weight by 3.1lbs on each corner over the factory 28.10lb rotors! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture, and dissipate heat.

The central hat portion of the 034Motorsport rotor is made of 6061-T6 aircraft specification aluminum. The disc is constructed out of a proprietary metal alloy that can withstand immense braking temperatures while holding form. The rotor utilizes 48 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.

The face of the rotor utilizes J-Slot slots to clean the pad and surface of contaminants and allows hot pad outgassing, all while reducing overall braking noise compared to a traditional slotted rotor.

The rotor and hat have a floating mount system that utilizes high strength alloy steel bobbins. The pins take the load from braking actions while maintaining the axial and radial float between the hat and disc, allowing for safe expansion and contraction from heat.

Features:

• Lightweight Construction (25.0lb034Motorsport Rotor vs.28.0lbOE BMW Rotor)
• Floating, 2-Piece Design
• Aerospace Grade Aluminum Hats
• CM-250 Special Alloy Rotor Rings
• J-slotted Friction Face
• OEM Fitment & Functionality
• 48 Curved Vanes Force Cooling Air through Brake Disc
• Floating Bobbins Mounting System
• Replaceable Rotor Rings
• Lower Long-term Maintenance Cost

OE Part Interchange:

• 34 10 8 858 705 (Left)
• 34 10 8 858 706 (Right)

What’s Included:

• 348×36 Left Rotor
• 348×36 Right Rotor
• Installation and Break-in Instruction Sheet