Okay I'm gonna start listing mods in the order I would want them, I'll start with mods I've gotten already and then stick in some I wished I had.
1. KKM air intake, cheap and helps air flow, sounds good. $100
2. Total exhaust, Bassani cat-back, SHO-Shop Y-Pipe. Great sound+good performance at least by SVT standards.
Around $1000 for both
3. Eibachs IMO best looks mod available for SVT, your car will handle like its on rails, little stiffer ride $240+install cost, anywhere from $150-$400.
4. 22mm rear sway bar, $120, unless you are serious auto-X, I would pass.
5. ASP Pulley, $120, pass, I've got one, can't hardly tell, dissapointment, but has not hurt the car any.
6. Koni struts, see sway bar, I'll pass, until my stock struts need replaced.
7. MSDS headers, who knows, no one will dyno them on an SVT, gotta kick ass, if you get them buy them before the SHO y-pipe, they come with one, ideal combo would be headers and Bassani. $600
8. Chips, mixed results, just make sure it's your last mod. Superchip and Diablo $240
I'm stopping here, these are the warranty safe mods, I think? If you wanna see alot of the mods check out SP Motorsports site. If you have no warranty and want to make a real fast car, Quafe differential+Bassani+KKM+MSDS+3.0 liter conversion=fast SVT or Vortech Supercharger+SVT or Zex+SVT hope I did'nt confuse you. Just remember you don't have a stang, without a 3.0, blower, or nitrous you're not gonna be THAT fast. Just hang around the site you will learn more from guys that know a hella lot more than I do.