THe problem with those is clearing your header. I had the neuspeed one and my Mugen CTR header basically sat right on, rattling around like mad. I tried notching the brace but it still would rattle when the engine torqued, so the neuspeed brace found itself in my garbage, basically ruined from my notching.
What the Sol needs is an X-brace under the passenger area to stiffen the flexi-flyer chassis in the middle of the car. :P