Product Details

AST Lowering Springs for the 2014-2020 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD (S550) are manufactured from a premium high tensile chromium-silicone wire which is handpicked by AST engineers for its quality and metal consistency.

Each spring is cold wound and then heat treated to increase hardness and reduce internal stresses present after winding. Each spring is then individually shot peened, phosphate treated and then powder coated to outlast even the life of the vehicle.

Standard Features

  • Progressive rates on most vehicles.
  • EDC Compatible (if applicable to vehicle)
  • Each spring is blocked and computer tested prior to shipping, which reduces any settling once installed on the vehicle.
  • Lifetime warranty on breaking.
  • Most of our spring applications are TUV Certified and certificates can be provided upon request.
Specifications
Part Number ASTLS-17-044
Part Name Lowering Spring
Vehicle 2014-2020 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD
Chassis Code S550
Ride-Height Adjustable No
Spring Type Progressive
Approximate Drop - Front 35mm
Approximate Drop - Rear 30mm
TUV Certified Yes
Quantity Set of 4
Vehicle Fitment
  • 2014 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD (S550)
  • 2015 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD (S550)
  • 2016 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD (S550)
  • 2017 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD (S550)
  • 2018 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD (S550)
  • 2019 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD (S550)
  • 2020 Ford Mustang Fastback/Convertible 2.3/3.7 V6 RWD (S550)

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