Is the HFP suspension kit worth the investment or am I far better off going with something aftermarket to provide a little drop and improve handleing.

 

Save your money, and go with a Tein SS coilover, and eibach front and rear camber kits.

My car came with the HFP package, and the ride was ok, but I had problems with to much weight in the trunk (after market stereo) and the car got really light above 90.

Swapped to the tein ss set, and now I have full control over ride height, dampening, camber, and I can do 130 all day long.

FYI I live in germany, so no I'm not driving that fats on a US highway.