Edit: Never mind, these are not for sale.

 

Any idea if they might fit on the 05-09 LGT?

 

I believe they're wider than stock LGT LCA's. They bolt on but you also need longer axles (from a 2011-2012 WRX maybe?) and a 2008-2012 STI sway bar. Maybe one or two other things but those would be the major components.

So on one hand you're looking at a bigger investment than just LCA's. On the other hand you'd get a wider front track out of it, which might be a great way to reduce understeer without making the rear suspension overly stiff.