{"product_id":"2-piece-floating-rear-brake-rotor-370mm-upgrade-for-b9-b9-5-audi-a4-s4-a5-s5-q5-sq5-rs4-rs5","title":"2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9\/B9.5 Audi A4\/S4, A5\/S5, Q5\/SQ5, \u0026 RS4\/RS5","description":"\u003ch3\u003eProduct Description:\u003c\/h3\u003e\n\u003cp\u003eThe 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade for B9\/B9.5 Audi A4\/S4, A5\/S5, Q5\/SQ5, \u0026amp; RS4\/RS5 is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory rear calipers. Upgrading your rotors will increase overall braking performance in street, track, and HDPE driving conditions, as they keep your brakes cool and strong all day long! \u003cbr\u003e\u003cbr\u003eWeighing in at approximately 15.1lbs, each rotor reduces rotational weight by 1.6lbs on each corner over the factory 16.7lbs rotors, and increases rotor diameter from 330mm to 370mm! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture heat, while utilizing 36 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat. \u003cbr\u003e\u003cbr\u003eUpsizing the rear rotor size from 330mm to 370mm repositions the caliper further outward, increasing its leverage on the rotor. With this added leverage, the factory rear caliper can generate more braking force at the rear axle. This not only improves rear-end braking performance, but also helps take stress off the front brakes during hard stops. The result is a more balanced braking system with better stability, reduced front brake overload, and enhanced overall stopping confidence. \u003cbr\u003e\u003cbr\u003eThe 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 36 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat. \u003cbr\u003e\u003cbr\u003eThe face of the rotor utilizes J-Slot slots to clean the pad surface of contaminants and allows hot pad outgassing. \u003cbr\u003e\u003cbr\u003eThe 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.\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLightweight Construction (15.1lb 370mm 034Motorsport Rotor vs. 16.7lb 330mm OE Rotor)\u003c\/li\u003e\n\u003cli\u003eFloating, 2-Piece Design\u003c\/li\u003e\n\u003cli\u003eAerospace Grade Aluminum Hats with Type III Hard Anodizing**\u003c\/li\u003e\n\u003cli\u003eCM-250 Special Alloy Rotor Rings\u003c\/li\u003e\n\u003cli\u003eJ-Slot Slotted Friction Face\u003c\/li\u003e\n\u003cli\u003eOEM Fitment \u0026amp; Functionality\u003c\/li\u003e\n\u003cli\u003e36 Curved Vanes Force Cooling Air through Brake Disc\u003c\/li\u003e\n\u003cli\u003eFloating Bobbins Mounting System\u003c\/li\u003e\n\u003cli\u003eReplaceable Rotor Rings\u003c\/li\u003e\n\u003cli\u003eLower Long-term Maintenance Cost\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePart Number Interchange for A\/S Models:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e8W0 615 601 E\u003c\/li\u003e\n\u003cli\u003e8W0 615 601 K\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePart Number Interchange for RS4\/RS5:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e8W0 615 601 G\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e034Motorsport 2-Piece Floating Rear Rotor Pair\u003c\/li\u003e\n\u003cli\u003eCaliper Carrier Conversion Brackets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"widget block block-static-block\"\u003e\u003cstrong\u003e\u003ci\u003e**Please Note: Type III hard anodizing of aluminum is considered as a functional surface coating process. While we always aim for color consistency, color variations may exist from batch to batch due to the nature and variables in the anodizing process.\u003c\/i\u003e\u003c\/strong\u003e\u003c\/div\u003e","brand":"034Motorsport","offers":[{"title":"Black \/ A4\/A5\/S4\/S5\/Q5\/SQ5","offer_id":46504735080625,"sku":"034-301-2015-BLK","price":1128.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ RS5","offer_id":46504735113393,"sku":"034-301-2019-BLK","price":1128.0,"currency_code":"USD","in_stock":true},{"title":"Red \/ A4\/A5\/S4\/S5\/Q5\/SQ5","offer_id":46504735146161,"sku":"034-301-2015-RED","price":1128.0,"currency_code":"USD","in_stock":true},{"title":"Red \/ RS5","offer_id":46504735178929,"sku":"034-301-2019-RED","price":1128.0,"currency_code":"USD","in_stock":true},{"title":"Grey \/ A4\/A5\/S4\/S5\/Q5\/SQ5","offer_id":46504735211697,"sku":"034-301-2015-GRY","price":1128.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1379\/3201\/files\/2-piece-floating-rear-brake-rotor-370mm-upgrade-for-b9-b9-5-audi-a4-s4-a5-s5-q5-sq5-and-rs5-034-301-2015_19-1.webp?v=1765832255","url":"https:\/\/hstuning.com\/products\/2-piece-floating-rear-brake-rotor-370mm-upgrade-for-b9-b9-5-audi-a4-s4-a5-s5-q5-sq5-rs4-rs5","provider":"HS Tuning ","version":"1.0","type":"link"}