If you run an XRAY T4-2014, the RADTEC 2.0mm rear graphite arm stiffeners are a focused upgrade to cut arm flex and stabilise handling. The plates reinforce critical areas so suspension geometry remains more constant under load.
These stiffeners are aimed at drivers who need predictable rear behaviour when pushing limits. By limiting unwanted arm deformation, they help the car maintain its set-up through braking and cornering, which is useful during qualifying and race stints.
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