New or Old

SN 95 if you're limiting to those choices. Otherwise i'd have said 86 Ttopped 5.0

thats a tough choice, but honestly while the sn95 99-04s are down 40hp, they are a good deal cheaper to buy and with the extra money you'd save on purchase price you could do some good modding, i hadnt spent that much money on my GT and could run away from the 05+ annnnd IMO they look better

I'd look for a 99-04 in good condition, so you can spend money on mods, and not repair bills.

I spent 5500 in my GT to get cams, add 3.73 gears, shifter, LTs, dyno tune, tubular K member, drag shocks up front, 315s and 10.5 DD bullitts outback. And a few appearance mods. But that was JUST parts, no labor...me and my dad do all the work on it.

My car was running 12.79 @ 108.8 on 15s W/ 275 nitto Drs and the spare pulled. Full street trim the best I got was 13.20 @ 106.x...but I had some serious traction issues.

An 05 would get to what mine was running with just a few boltons...and the chasis is alot better/stiffer. I dont even have sub frame connectors yet .

IMO you should just get the 05...I dont like the looks THAT much, but once you throw on some wheels/tires, and maybe a few little things like the duck tail and lower it....they look pretty sick.