First off, it doesn't appear anyone looked at the Stage two kit, because I saw no comments about price or mods.

3800SC Stage 2 Performance Package Includes:
Reprogrammed v1.0 PCM
160-degree or 180-degree SLP Performance Parts Thermostat
your choice of either a 3.4” or 3.25” pulley
your choice of either a Press-On Pulley or the upgraded Thrasher Modular Pulley System
Thrasher Cold Air Induction Kit with the option to upgrade to the MSP Cold Air Induction System
Goodyear Gatorback Supercharger Belt
Optional Coolant Recovery Bottle for 1997-1998 owners
Optional Intake F-duct for 1997-1998 owners upgrading to the MSP CAI System
Optional Thrasher Supercharger Pulley Puller Tool for Rental or Purchase

I'm not going to comment on the mods, because I do too much of that.

If you are really tight on cash then leave it stock. The modding thing is addictive, expensive even with the best intentions, and things can break and or go wrong when you open Pandora's box. I loved my car when it was stock, and I love it now. There were times during different modding stages that it was frustrating, disappointing, exciting, but almost always expensive.

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04 Indy SS build #972
XP, TOG's, Lightning injectors, 2.8 pulley, 105 CC springs, Wizaired, 3.29 gears, tripleedgeperformance ported blower, machined LIM, 180* tstat, RS12YC@.053, FP rewire, Alt rewire, stage 1 V boost, PRJ wires, Stage 2 IC