I've been collecting parts for my Caliber SRT and am just about ready for the big jump now that my warranty has long since expired and the car has been paid off years ago. It's nothing too serious as I'll still be using the stock turbo, but I hope to get the car closer to 350 WHP in the end.
So far I've got:
Brakes: New plain rotors from NAPA and Hawk HPS brake pads all around.
Intake: Needswings
Intercooler: AGP Turbo (4.5" thick bar/plate core!)
BOV: Needwings with HKS BOV and BOP (although I plan to use an adapter with the TurboXS RFL instead)
Exhaust: Needswings cat-less downpipe(s) with cutout
PCM: RealTune MS1K
Tires: Pirelli Cinturato P7 245/40/19 to replace the stock Goodyear F1 225/45/19.
Gauges: Dual Aeroforce Interceptor scan gauges
Pods: dual steering column pod and single A-pillar pod from GizmosRetrofits (now Inline Carbon)
Stereo: later model Chrysler RER touch-screen Nav unit to replace stock REC Nav unit (kinda on the fence about this).
Also "Driver Mod" from Neil Emiro...
Right now the car only has Mopar MS1 PCM, an "SRT" grille badge from a Charger SRT, and a shorty antenna (ha!). I'm still looking at buying a set of BC coil-overs and some Enkei wheels, but I'm kinda tapped out right now until tax refund time.