I am right now having the same issue. I have loved my GVR4, and it is a blast to drive. There is nohting better than killing any car on the freeway in a 4door. However now I have to race bikes because when I race anything else I dont know if they are going or not /ubbthreads/images/graemlins/smile.gif. My galant makes 700hp on race gas, and will murder anything on the streets.
Now my favorite part about the galant is that I dont care if anything breaks, because the car is 20 years old. I dont mind cutting into the car, because it is 20 years old, I dont mind the looks I get from people when they are hoping that my car does not explode on the highway.
But I would like to tuck a fat tire under the car and be able to take a turn faster than 20mph.
In the up comming months I am going to switch to an evo, now most of my parts from the galant will swap across to the evo. Fuel system, Turbo, Intercooler, Gauges, AEM EMS, sensors, and a few other ods and ends. The only thing I cannot take with me is the motor. hell I am going to use my twin plate on my evo.
So the moral of the story, as you are upgrading your galant just make sure that you can take your parts with you to an evo and you are good.