I think depends on allot of things. Do you want a quick spooling turbo (I want a little lag on the street)? You can put together your own kit once you know what you want. Here are some regular prices.

* Garrett T3/T04E 57 trim .60 A/R compressor .48 A/R turbine stage 3 wheel $549.00 (Cheap Turbo)
* TiAL 35mm wastategate with 6.5lb spring $199.00 (Import Parts)
* TiAL 50mm blowoff valve $200.00 (Darkside Racing)
* PWR 8x20x3 intercooler with end tanks $440.00 (This guy Earl. I forget what company he is with)
* Oil feed and return lines $187.55 (Pegasus Auto Racing Supplies)
* Intercooler 2.25" pipes $250.00-+
* Inline Pro manifold $500.00

Then you need a few misc flanges which range from $8.00-$20.00. That all comes out to $2325.55 for a bad ass kit.