hi so about a month ago now i purchased and front lower cross brace. After a month of driving now i haven't really noticed to much. maybe the front is a little tighter. one thing i have noticed though and the reason for me posting this is it now understeers a hell of a lot more than before when you get to the limit. which isnt to my taste. i like the feeling of the back end stepping out so i then have to control it. my question is, is there other braces needed to correct the understeer from the x brace i.e i dont have any other braces so would a strut brace or rear upper brace improve the understeer issue. if not i may just take it off and sell. thanks in advance.

 

You've slightly increased the front end stiffness, similar to the effect of an anti roll bar (but much smaller)

A rear lower brace will help balance it out.

 

This ^

You could try backing the front dampers off a couple of clicks and stiffening the rears a little to help with the under/oversteer balance. I've found a couple of clicks can make a noticeable difference.

 

I'm a big fan of front lower braces - makes a big difference in terms of tram lining and steering feel to my mind. I've never had under steer problems though, with or without the brace fitted, so it could be down to (cliche warning) 'driving style'.

Definitely do the rear lower brace, as said above, and soften the front end a touch. One question not answered yet though is what tyres are you using and what condition are they in? The extra stiffness will, presumably, highlight any deficiency.

 

You´ve stiffened the front end, and it is completely normal that you get a bit more understeer. You could stiffen the rear, soften the front, add more camber on the front, reduce camber on the rear, reduce toe in the rear, add more caster on the front, increase width of front wheels, increase pressure of rear tyres and reduce pressure of front tyres, if you have adjustable dampers, go for softer setting on the front, etc.
so many settings you can do to get the right balance.

 

I'd get the geo. checked; the subframe might have moved when the bolts came out.

If I detected more understeer, it was only because there was improved steering feel and the impending breakaway became more detectable.

 

had the geo done recently. front came out perfect but rear camber adjustment was slightly out due to seized bolt

 

When you say 'perfect', what are your settings? I noticed something similar when I fitted a front lower Cusco brace. Fitting their lower rear bar definitely improved rear feel and stability esp. over broken surfaces, but didn't dial out all of the understeer, which increases towards the limit.

Beyond the advice above, I suspect that regular front subframes flex, so our static geo settings aren't the same as when cornering. Your braces reduce body flex under cornering, probably reducing camber changes too . So, I'd start off by increasing front camber. If it understeers all of the time, and not just on the limit, then I'd reduce front caster a bit and possibly a touch less toe too. Keep an eye out for uneven tyre wear, although right now it's probably too early to tell.