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lowering the car causes the rear toe arms to strech. The lower you go, the longer the rear arms need to be to reach the hub. My HR springs needed rear arms because the stock arms could not reach the hubs.
If you go even lower, you will need to do the same thing for the front, as well as lifting the stearing rack.
the only way to make the stock arms reach is to either really toe out, or decrease camber to zero or even +1.
I tried to be cheap, did the lowering myself, took it to porsche to align. They could not get it into specs and refused to do anything further. I said screw it I will drive it with correct camber but toe out.
I chewed up a new set of PS2, in 3 weeks of daily driving.
cost @ 450$
I got the cheap ebay arms, they where too fat, rubbed my rims.
then on the advise of the dealer, i got the tarret, fit great, alignment perfect, drives flat and nice, tires now last the standard 20K miles or so.
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2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
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