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HSD, G4, D2 whatever you call it, my advice would be to drive a car with them installed then drive a car with something like bilsteins, or tein mono-flex. then make up your mind. there is a massive difference between them.

that's not to confuse cained second hand coilovers with stuffed damping

I run 500lb/400lb in my Cusco R comps - in a car that weighs around 1150kg - on the street, and its not overly bumpy/stiff - because the dampers work well and are adjusted correctly

If you are happy with G4/D2, I am not knocking you, but you dont know what your missing out on.

I have personally tried Kei Office, Cusco zero 2 R, ohlins, bilstein, JIC, Tein Super Street, HA and flex, Tanabes, HSDs, Silk Road/Section, buddy club, D2s and G4s - all when they were working well or new (helps that I have worked in performance shops that sell and fit them)

D2/G4 were the bottom of the pile - IMO, a waste of money, you are just lining the pockets of the distributors and the china men that make them

HSDs were a bit of a surprise, they worked very, very well for an entry level coilover, for a few dollars more, are much, much better value than D2/G4

Tein SS, I didnt think much of them - better with a coil/shock setup from ohlins or bilsein. Flex werent much better IMO. Both SS and flex are ok for the street, but that's what they are designed for I spose.

Bilstein, Ohlins and Cuscos, Tein HA, Tanabe, JIC, buddy club, silk road, Office (but they didnt last long before they needed rebuild) worked well under sedate driving and when going hard.

just my 0.02c

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