Upgrading? Options

[115celi]

You guys weren't kidding when you said I’d be hungry for more power. I have only been driving her for a few months and am already looking to upgrade.
I just had a few questions.

1. What is a 3s capable of safely handling with stock internals and ECU? my goal for now would be around 300.
2. Has anybody used ATS Racing products, I stumbled across their website a few days ago and they seem to have some good bolt on kits. And would their ECU be better than a stand alone?
3. What would i need to do to achieve 300-350 hp? I know turbo, fuel, ecu upgrade, probably ignition. Also I would need to upgrade the suspension, I don't want to lower it to much because I am already bottoming out in some spots, any suggestions?

I am still in the planning stage, trying to get as much info and product list together, I am hoping to start next fall. Any help is much appreciated.
Thanks Mike.