Originally Posted by
Dave
My car is a June 2013 build and still has what is suspect are the original PS2s.
When I bought the M5 it had PS3s on it, which were not as good as the PS1 or PS2 apparently but really suited the car, I fitted PSS which were very good but I'm convinced caused the tramlining.
@Peter - what are you hoping to get from PSS that you wouldn't get from PS4S
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