Quantum dampers patrick is the man to talk to there , His son races a RF83 in the COB , very helpful and good value , lots of the modern guys using them also plus they have been in F3 etc for years
stay away from AVO if you can , many use them many moan about them
there very heavy and a friend recently brought some and they sent them back for a rebuild before they even fitted them to the car as one had a problem
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