I wanted to get some advice from the track guys on what is the preferred method for modifying the suspension geometry. Obviously after lowering your car, the geometry changes compromising bump steer and arguably roll center. In addition, camber adjustment is needed for optimal handling. After doing some research I have several ways to optimize the suspension geometry to get optimal camber and reduce bump steer.

TC designs Front upper arms and rear bump steer kit

OR

The JDM Roll Center adjusters/ Bump steer kit for the lower arms (js and Spoon)

I am looking for a good discussion on pros/cons of either.
Is one preferred for track/ optimal handling?
I would assume you wouldn't use both?
Any other combination's out there?

 

On the FS forum, there is another BSK option that is quite affordable: $150. Any thoughts/opinions on this one?

HardRace Suspensions
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