uprated ball joints?

so i just got my 197 :tongueout:roud:

the guy gave me a receipt from r-sport for two ball joints, saying they were uprated items and went on telling me how they have there own racing team and use these etc.

just looking to see if anyone could enlighten me on the subject?
 
R-Sport are the real deal. Based in Wimbledon they supply Renaultsport motorsport cars like the Twingo R2, Clio R3, Megane N4, the Clio Cup race cars and all parts to teams and privateers.

I would imagine these ball joints are for the Cup Race car.