Alright, I had a hard time deciphering your post, but I'll attempt to answer your questions.
Performance parts that will give you more HP'S (assuming you mean horsepower?)
- I would stick with the Mopar stage upgrades. Stage 1 is a great building block for alot of future modifications.
As for your cat-back
- The Mopar/Borla is relatively inexpensive, and sounds great. It was designed for the car. I highly recommend it.
Cold Air Intake
- A CAI is pointless on a relatively stock car. Save your money, buy a K&N drop in filter for the car. A CAI will not get you more power on our car. (if someone can dyno prove that it makes a signifigant, repeatable gain I'll stand corrected)
Lowering
- If you have the money get the Mopar stage 3 coilovers. If not I really like the Hotchkis springs.
Turbo Timer
- If you want one, go for it. I personally don't use one, I always let my car cool down for a bit when I run it really hard. Most of the time, I don't worry about it.
Hard pipes or what you called
Quote:
the hoses that go to the intercooler to the motor, from rubber to intake like pipeing
- You can replace them if you want. I wouldn't worry about it if you plan on keeping stock boost levels.
Nothing I've suggested should void your warranty, but that is ultimately up to the dealer and DCX.