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Mustang Performance Parts

Steeda Pro-Action & Sport Springs Mustang Suspension Package (11-14)

Our Price $684.95
Market Price $761.95  
You save $77.00 (10%)
685 points

Manufacturer:  Steeda Autosports

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  • Product Description
  • Installation Info
  • Mustang Fitment

Steeda's Pro-Action Sport Lowering kits pair our Steeda Sport Springs with matched Pro-Action Shocks and Struts in one complete package.

When lowering your 2005-2014 Mustang GT it makes both performance and financial sense to change the springs, shocks and struts together. From a performance standpoint our Pro-Action shocks and struts are far superior to the factory units at properly controlling the higher spring rates of our lowering springs providing improved ride quality and control.

With the front springs mounted directly on the strut which has to be removed for installation, it makes financial sense to do the springs, struts and shocks at the same time, saving you on labor costs.

Do the job right once and save money with our Pro-Action Sport Lowering Kits.

Note: Springs will lower your Mustang 1" in the front and 1 1/4" in the rear.

Package Includes

  • 555-8405-11 - Steeda Pro-Action Mustang Shocks and Struts
  • 555-8215 - Steeda Mustang Sport Springs

Product Benefits

  • Lower 1" in the front and 1 1/4" in the rear
  • Kit saves time and money on installation
  • Improves looks, handling, and ride quality
Time to Install
About 7 Hours
Level of Difficulty
Tech Recommended
Tools Needed
Shop Tools
Model Year(s)
2014 2013 2012 2011

GT Boss

Manual Automatic

Product Reviews

This is one of the best of many mods I've done to my 2011 GT. If you want vastly improved handling without making your car ride like an old wagon, this is the suspension for you. It does not make the car beat you up at ALL. In fact, you have to be on a flat-out terrible road to even be able to tell that it's any stiffer than stock.

As for the handling, prepare to be able to pretty much double the posted speed on curves without even departing your lane. I ran out of *ahem* guts before the car runs out of ability now. I can't imagine that the Ultra-Lites would handle even better. Stability at speed is also greatly improved. It is VERY easy to cruise and not realize that you are *greatly* exceeding the speed limit.

Installation was fairly easy, especially considering that I did it on jack stands in my backyard AND I had never installed a suspension before. Installation note: either spring for the Steeda caster/camber plates or get GT500 strut mounts, as the stock GT mounts are pretty crappy and will probably fall apart on you, spilling ball bearings everywhere. NOT fun.

The only potential downside I can see to this suspension kit is that it lowers the car considerably but does not slam the it to the ground like many people want. The ride quality more than makes up for that, though.

Bottom line: if you want your Mustang to handle WAY better but not beat you to death while doing so (particularly if it is your daily driver), THIS is the suspension package for you. Bravo, Steeda!!!!

What a night and day difference in handling. Install was straightforward as well, thanks Steeda.

Great upgrade for the 2011 5.0. Helped with 60 ft times as well.

Definitely recommend this suspension upgrade - rides as smooth as stock and gets rid of the wheel gap.