Are the underbodies on the convertable GT's the same as the coupes? I pull a wheel on my launches, and it is most likely to chassis twist. I would like to add some rigidity before i damage the car. I was eyeing the steeda full length subframe connectors. http://steeda.com/store/-catalog/FullLengthSFC.htm Will they fit my 2000 GT vert? Anyone else have any other SFC reccomendations?