This is a hard question to answer because most people will put an exhaust on.. put other parts on.. and speed is addicting.. so next they will add.. stage 1.. other parts.. VAK system..ect.. but then get to a point where the size exhaust wont let out the amount of air they are wanting there cars to push through..
This is the hard part.. The PT is realy easy to get into the mid 14's.. here is a list of parts that I see track proven..
1)Stage 1 (Tommy is the man to get this from)
2)exhaust (I love the MOPAR exhaust but they dont make a 3" so if you want to get into the 13's then look elsewhere)
3)VAK system
4)lowering spring and stiffer struts
Thats it.. for a mid 14 second car you are going to have a lot of fun
For a low 14 second car or faster..
1)(Same as above.. substitute the exhaust for a 3" version)
2)Boost controler (electric or manual)
3)waste gate (stock one leaks at high boost and is not designed for high boost that is needed to get into the 13's)
4)Possible upgraded transmision if auto.. if stick then better clutch
5)Piggy back system is good.. then you can tune your car way better
6)slicks or drag radials, helmit, roll cage..ect..
Hope that helps.. sure I missed a few small things.. some cool prototypepower stickers I heard help like 5 HP.. but I have not taken them to the dyno yet....
Oh ya .. find a local track and practice.. practice.. practice.. you will have lots of fun.. find other PT people or anyone and just go ..
Adam
www.prototypepower.com