Designed to fit: 2013 - 2019 Porsche 911 (all 991) Product Details: Note: Only offered in Race (Black) durometer Works in front or rear lower control arm, replaces inner arm bushing. Stock rubber control arm bushings give a disconnected and mushy feel to the front suspension, especially when worn, as the bushing deflects more than it should. You get sloppy steering, vibrations, and poor handling which makes the car feel unstable. These urethane bushings are stiffer than stock rubber and will not deflect as much. This helps keep the alignment in check with less variation. The car feels more planted and confidence-inspiring. And a lifetime warranty means you'll likely never have to pay for another bushing ever again! Unlike other urethane bushings using only one or two urethane grades, Powerflex design engineers choose the correct hardness to allow for the specific movement or rigidity required for each component while minimizing unwanted NVH (Noise, Vibration, and Harshness). Bushings are typically produced in one of three grades: Yellow (70-80A, approximately 25% stiffer than stock), Purple (80-90A, approximately 30% stiffer than stock), and Black (90-95A, approximately 80% stiffer than stock). = Race OE / OEM Cross Reference Numbers: 996341053 / 997341041 / 997331053 Video About Powerflex Powerflex has extensive knowledge and design experience in automotive suspension and chassis systems. These design skills have been combined with advanced polyurethane manufacturing techniques leading to the development of a wide range of high-performance automotive polyurethane components that are second to none in quality and performance. All component manufacturing is carried out by our in-house engineers utilizing the latest automatic processing equipment to ensure premium quality. Testing of new components is carried out both on test rigs and on the actual vehicle the parts are designed for. Stainless steel and aluminum components are also machined in-house on the latest computer-controlled equipment to ensure perfect repeatability and exceptional quality. The special type of polyurethane used by Powerflex is an advanced proprietary material which has unique properties. This ensures that each product not only offers the high-performance capabilities our customers expect, but also the exceptionally long life and quality they demand - without increased vibration or noise. Powerflex gained ISO 9001 accreditation in December of 2014. ISO 9001 is an international standard showing that a company operates within a strict system of quality procedures, and Powerflex was awarded this certification on the first assessment inspection - with no changes or recommendations made to the way our business operates, proving our dedication to providing the absolute best in quality and performance. All of these factors plus our ever-expanding product lineup combine to make Powerflex number one in performance bushings.
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