Ian or others,
Are there any advantages to getting the Empire kit if one has the comfort kit already?
When I got my 2012 car it had already had the comfort kit fitted - which was OK. At least the chronic bump steer had been eliminated. Last winter I fitted the Empire wishbone kit and don't regret it at all. The car is much more confidence-inspiring and chuckable into the corners than before. Hard to quantify but it's so much more 'planted' than previously.