H&R 51691-77 Super Sport Lowering Springs for 15-23 Ford Mustang V6/V8 (w/o MagneRide) If you are looking for a way to improve the handling and appearance of your Mustang, you might want to consider the H&R 51691-77 Super Sport Lowering Springs. These springs are designed to lower your Mustang by approximately 1.75 inches in the front and rear, giving it a more aggressive stance and a lower center of gravity. The springs are made from a special 54SiCr6 spring steel, which has a high tensile strength and resiliency, ensuring a long-lasting performance and durability. The springs are also progressive, meaning they provide a comfortable ride on the street and a stiffer ride on the track, adapting to different driving conditions and styles. Key Features: Lower your Mustang by 1.75 inches in the front and rear Enhance the handling and cornering of your Mustang Reduce body roll, wheel hop, and brake dive Provide a comfortable ride on the street and a stiffer ride on the track Made from high-quality 54SiCr6 spring steel Compatible with stock or aftermarket shocks and struts Benefits: Give your Mustang a more aggressive and sporty look Enjoy a more responsive and fun driving experience Increase the stability and safety of your Mustang Save money and time by installing the springs yourself Get a lifetime warranty from H&R Product Specs: Front Lowering: 1.75 inches Rear Lowering: 1.75 inches Spring Rate: Progressive Color: Blue Material: 54SiCr6 spring steel Part Number: 51691-77 Install Difficulty Level: The installation of the H&R Super Sport Lowering Springs is relatively easy and can be done by anyone with basic tools and skills. The installation time may vary depending on your experience level, but it should take no more than 2 hours. You will need to remove the wheels, the stock springs, and the shocks or struts, and then install the new springs and reassemble everything. You may also need to adjust the alignment after the installation. Vehicle Fitment: The H&R Super Sport Lowering Springs are compatible with the following vehicles: Ford Mustang V6 (2015-2017) Ford Mustang GT (2015-2023) Ford Mustang GT350 (2015-2020) Ford Mustang GT500 (2020-2023) The springs are not compatible with vehicles equipped with MagneRide suspension. If you have any questions about this product or want to report any inaccuracies in this product description, please contact the MPT Performance experts at (407) 636-7077 or by email.