There are many ways to skin that cat. Research "spring rubbers"
https://www.hypercoils.com/spring-rubbers/
beauty of this concept is you can stiffen your current springs without changing ride height
these guys make them in custom size and durometer
https://www.acrotechinc.com/race-ca..._w5tCS5m6ytgQJ8y5jPRqfvUjrInHP60aAl0-EALw_wcB
beauty is you don't have to unbolt ANYTHING to add them or remove them. I use them for autocross events, then remove them afterwards so my daily ride doesn't suck
shown in the pic are from Speedway (left), Acrotech (middle) and Howe Racing (righr). The speedway and Acrotech shown here fit GTI strut springs, the Howe fit the rear springs.
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