Nice! Let me know if you pull the trigger. I've been doing a lot of research and have found the bread-n-butter mods for the Caliber SRT4 to be Mopar Stage1, and a Downpipe....very much like Pulley, Intake, and Tune are for the SRT6.

The things I have installed so far are:
-MPx catted downpipe
- Needswings Intake
- Mopar Swaybars
- MPx strut bar
- AGP catch can
- AGP billet engine mount
- Mopar Blow off plate
- Lightweight Crank Pulley

...and I haven't even hit 750 miles on her yet.

I'm REALLY impressed with the sway bars- they COMPLETELY transformed the way the car handles. The DP isn't quite noticeable- at least at slower speeds. I've heard it makes a big difference with more boost (ie Mopar Stage 1 ECU).

The engine mount elimintated my torque steer and wheel seemingly completely however at idle and slow take-off the vibrations are unbearable. I keep going back and forth with it but think I'm going to have it reverted to stock and just deal with the torque steer. Sitting at lights or in stop n' go traffic is grueling when your cabin feels like a vibrating bed. Very unnerving.