Stage kits: Junk.
What vendor sites tell you: Mostly lies about what needs to be ran for "X" pulley.
What every site SHOULD say is: Fix the crappy 3800 exhaust, make sure everything else is in good shape to mod, get a way to scan the car or a tuner, then start diving into crap.
Also note: You will break things, especially now that these cars are getting older.
Also also note: Stock GTP's will make about 195-205 WHP stock. Proper 3.4" setup cars will make about 230-240 WHP. Typical drivetrain loss is about 18-20% IIRC, so about 275-290 CHP.
But measuring to the crank is lame. Wheels is the only measurement that should matter.
