These are the best spring holders ive seen. I mean lets be clear, its not a shock absorber as there is no dampening, but still they are very nice...
The shaft it self it thicker than the stock unit and seems to be able to keep it self a lot more straight in the housing. The end cap is conveniently threaded for easy assembly and the shaft ends thread is recessed to give the ballend something to screw up to meaning the shocks are all the same length, no more tweaking
some other key points... the top and bottom ball ends have been redesigned with thicker ball cups and they work like a dream, they really snap onto the balls and there is little to no resistance in the ball joints... that there is a massive improvement over stock.
Verdict, very nice unit... during assembly there is some nice features that made that a lot easier but when driving there is no difference. if anything in theory u could argue its worse because the shocks are so smooth the dont act as friction shocks.
IMO this is a durability upgrade, If u are sick of your shocks poping of the balls, then these are defiantly worth a look.
if you are looking to improve performance, you will need the optional springs