FEATURESAggressive StanceImproves HandlingLowers Center of GravityProgressive Spring RateCoupe Drop: Front – 1.1” Rear – 1.0”Convertible Drop: Front – 1.2” Rear – 1.1”Fits 2015-2024 GT Coupe and Convertible Mustangs (Will not fit MagneRide Suspension)Clears Stock and Aftermarket Wheels & Tires.DESCRIPTIONImproves Handling.These Eibach Pro-Kit Progressive Rate Springs will lower your S550 GT Mustang’s center of gravity, reducing squat during acceleration, body roll in the corners and excessive nose-dive under hard braking. A set of Eibach Pro-Kit Lowering Springs are great for daily driving, street and even track use. Improves Appearance.Not only does a set of Eibach Pro-Kit Springs improve the handling of your S550 GT, but it also improves it’s over all appearance by lowering the ride height to get rid of that lifted 4×4 look that they roll out of the factory with for a more aggressive stance. Progressive Design.Eibach’s proprietary progressive spring design provides the ultimate balance to deliver aggressive good looks and high performance handling, without ever compromising safety or ride quality. Clears Stock and Aftermarket Wheels & Tires.These lowering springs were engineered to be compatible with your stock size wheels and tires, as well as AmericanMuscle’s pre-configured wheel and tire combo kits (specific to your generation), to assure proper clearance with no rubbing issues. Application.This set of four Eibach Pro-Kit Springs are designed to fit both coupe and convertible 2015-2024 GT Mustangs. Pro-Kit #35145.140A High Performance Handling and Aggressive Good LooksLower Centre of Gravity — Lowers Mustang 1.1″ Front and 1.0″ Rear (25-30mm Front, 25mm rear)Stop Quicker Corner Faster and get Better MPGExcellent Ride QualityMillion Mile WarrantyPRO-KIT—2015-UP FORD MUSTANG GT DATA:TECHNICAL INFORMATION FRONT: OE rate: 28 N/mm (160 lbs/in)PRO-KIT progressive rate: 35 – 55 N/mm (200 – 314 lbs/in)Bump-stop: New Eibach Bump StopDamper: OETubing: N/AOE wheel center to fender: 397 mm (15.6 in)PRO-KIT wheel center to fender: 370 mm (14.5 in)PRO-KIT can be aligned to OE Specs: Yes Front Alignment: OE Camber = -0.8 deg (+/-0.8 deg)OE Caster = 7.2 deg (+/-0.8 deg)OE Toe = 0.0 deg (+/-0.2 deg)PRO-KIT Camber = -1.0 degPRO-KIT Caster = 7.5 degPRO-KIT Toe = 0.2 deg Approximate installation time: 2 hrs PRO-KIT – 2015-UP FORD MUSTANG GT Before Stock REAR: OE rate: 117 N/mm (668 lbs/in)PRO-KIT progressive rate: 140 – 160 N/mm (800 – 914 lbs/in)Damper: OEBump-stop: New Eibach Bump StopTubing: N/AOE wheel centre to fender: 385 mm (15.1 in)PRO-KIT wheel centre to fender: 360 mm (14.2 in)PRO-KIT can be aligned to OE specs: Yes