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Mustang Performance Parts

Boss Comp Front Lower Control Arms w/ Ball Joints (11-14)

Our Price $499.95
Market Price $599.95  
You save $100.00 (17%)
500 points

Manufacturer:  Speedline America

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  • Product Description
  • Installation Info
  • Mustang Fitment

Boss competition arms are upgraded with high duroameter urethane bushings for greatly reduced deflection and upgraded longer ball joints for strength and improved front suspension geometry and alignment.

Reduced bushing deflection will noticeably increase steering response and maintain proper alignment geometry during hard cornering. The high-grade ball joints will improve front geometry for increased cornering grip, reduced under steer, and reduced body roll.

Most importantly, these arms won’t fold up, bend and break under high load conditions like other aftermarket tubular designs.

Note: Due to the relocation from the longer ball joint, 18 inch or larger wheels are required for clearance.

Product Benefits

  • Lifetime Warranty
  • Will not fold up and break like aftermarket tubular designs
  • Track tested at Daytona Speedway at over 150 mph
  • Increased cornering grip - reduced understeer
  • Maintains proper alignment geometry, under hard braking
  • Reduced body roll
  • A must for 2005 through 2014 and Mustangs
  • No steering shimmy like other tubular control arms
  • Used by the top professional race teams
Time to Install
About 3 Hours
Level of Difficulty
Tech Recommended
Tools Needed
Basic Tools
Model Year(s)
2014 2013 2012 2011

GT V6 GT500 Boss

Manual Automatic

Product Reviews

This is one of the best mod you can do your Mustang. For street driving, it will completely fix the noise when go over speed bump. Yes, you can just swap out the bushing, but for the time and labor, I will just get the whole kit. Second, this will change Mustang's handling characteristic. Much much less steering wobble when full brake at the track and the car has much less understeer at cornet entry. After retune my koni setup. I took 2 seconds off my laptime on a 2 miles track. That's huge!!! At last, my 2013 Mustang has not experience the EPAS issue since I install the control arm.

Dramatic handling improvement, I am so glad I got these !!!

My car: 2012 V6 base coupe
My original control arms were fine (not making the clunking/squeaking noises some folks complain about), but I wanted the better bushings and ball joints so I ordered these. I did the install myself (without the help of any friends), and it took about three hours. The result was noticeable. Steering became much more precise and predictable. My only complaint is that there are no instructions from Steeda posted on how to do this. I ended up using a video I found on youtube.

If you're serious about your car's handling, get these control arms.