The QA1 Proma Star coilover strut kit is a versatile choice for Mustang owners who drive on the street and at the track. Custom tailored spring rates and double-adjustable strut valving deliver a controlled ride with adjustable ride height and stance. The lightweight inverted strut design places a large diameter shaft at the top to resist side loading for smoother, more consistent performance under hard cornering and braking.
Specifications:
- Type: Proma Star inverted coilover strut kit
- Valving: Double-adjustable
- Spring rate: 200 lb/in
- Tuning: Street
- Ride height: Adjustable
- Includes: Lightweight caster camber plates
- Kit contents: One pair of struts, springs, caster camber plates and related hardware
- Installation: Bolt-in
- Made in: USA
- Part number: HD05-12200
Vehicle Applications:
- 2005 Ford Mustang
- 2006 Ford Mustang
- 2007 Ford Mustang
- 2008 Ford Mustang
- 2009 Ford Mustang
- 2010 Ford Mustang
- 2011 Ford Mustang
- 2012 Ford Mustang
- 2013 Ford Mustang
- 2014 Ford Mustang
FAQ
What vehicles does the QA1 HD05-12200 strut kit fit?
It fits the 2005-2014 Ford Mustang. See the vehicle applications list for full year coverage.
Is the HD05-12200 kit single or double adjustable?
The HD05-12200 kit uses double-adjustable Proma Star coilover struts.
What spring rate does this kit include?
It is built with a 200 lb/in spring rate tuned for street use.
What is included in the kit?
The kit contains one pair of struts, springs, caster camber plates and related hardware for a bolt-in installation.

