I have an 87 auto Mustang GT. It has a rebuilt engine with the only extras being Flowmaster cat-back exhaust, cold air intake, Eibach pro kit, KYB AGX adjustable shocks, and caster/camber plates. I was wondering what would be the next modification I could possibly make and was looking for some suggestions. I read alot on here about changing the gears and I also thought frame connectors would be a good idea. Any ideas would be great. Thanks.