Rear arm uniball kit- ALFA ROMEO - 4C

$429.00 tax excl.

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Rear arm uni-ball kit - ALFA ROMEO 4C 

From the very beginning of its launch, the Alfa Romeo 4C is a subject of poor handling reviews from journalist and users. If you have ever wondered why your 4C has all the potential of a high performance car, fully carbon monocoque, excellent power to weight ratio and looks like a supercar, but it drives less so, here is the answer.

 

Design of the rear arms of 4C in conjunction with stock soft rubber bushings is not engineered appropriately for a performance driving. Under heavy cornering, acceleration or braking, rear arm rubber bushings cannot withstand the forces transferred from tires to the suspension and the arms, so they flex, which causes a massive dynamic toe changes and therefor the rear end of the car feels floaty, disconnected and very unpredictable at the limit. The more grip the car produces, more noticeable the problem gets. Replacing stock rubber bushings with this high quality, custom made, uni-balls is the only solution and it should be performed prior to any other modifications on the car if you actually care about the handling of your car. Function and design of uni-balls is similar to those of ball joints, but In contrast to the rubber bushings, they transmit very high dynamic forces with no restoring torque, which means, no dynamic alignment changes will happen, even at high lateral G forces you are experiencing when blasting your 4C down you favorite road or track.

 

This product will provide vastly improved handling and feedback of your 4C and is a "must have" upgrade for any 4C owner. With this mod the 4C will feel much more planted and predictable on the limit.

 

Product information: 

  • handling precision.
  • handling feedback.
  • reliability.
  • 30 degree sweep angle for binding free movement.
  • 42CrMo4 CNC machined housing and axis.
  • Heat treated interior cross axis.
  • PET-GL self lubricating sliding medium.
  • Rubber sealed assembly for weather proof use.
  • Maintenance free.
  • Sold as a set (4 uniballs for both rear control arms).
  • Detailed alignment sheet included (street, track, race).
  • Laser engraved GMS logo.
  • Fits all Alfa Romeo 4C Coupe and Spider models.

Important Information: 

  • While most of OEM Alfa Romeo 4C rear arm bushing holes diameter are within specs, there were cases where customers were claiming having a trouble installing the uniball bushings due to the arm bushing holes diameter being out of spec, either too big or too small or out of round, causing fitment issues of the uniballs.  If you want to make sure you get a "plug&play" uniball kit, you can send us a notice about exact inner diameter of your rear arm bushing holes and in case your arms are out spec, we'll machine a custom set of uniballs for you at an NO additional cost.
  • Wheel alignment is required afterwards.
  • For plug and play solution, we suggest use of Alfaworks control arms or other
GMS-RUNIB-4C

Specific References