So many variables here. Are you concerned about your warranty and having easily removable mods?
If I could do it all again for $3,000, here's what I'd go with. Some of the things on my list I currently have:
Intake: Corksport Power Series Intake - $239
Why? Because for $239, you get the intake and the turbo inlet pipe, choice of colors, an aluminum MAF housing and a dryflow filter.
Exhaust: Corksport catless downpipe (keep stock midpipe) - $299.
Why? One of the best bang for the buck and best sounding downpipes out there. Keep the stock midpipe to save money and for some backpressure. It'll also keep the car from stinking too bad and killing trees, which we should all be concerned about. If you want "The Full Monty", go with the entire Corksport TBE with high-flow catted midpipe for $987, but that's eating up a lot of funds for not that much more power.
Intercooler: ETS - $550.
Why? There are pros and cons to both styles and my pro's for an upgraded TMIC outweighed the cons. Everyone talks about heat soak with the TMIC, but unless you're sitting in traffic for minutes at a time, it shouldn't be an issue. The TMIC cools off pretty darn quickly once you're rolling and it doesn't take much speed with the ram air ducting that goes up under the hood. It's also easier to install and REMOVE, which was my main concern and at the time, there were no $500 FMIC kits. They were all up over $800-900.
Engine Mounts: CP-E 75 duro RMM (at the very least) - $140.
Why? Don't ask, just put it in. I'd actually spend the cash on all 3 CP-E mounts when they are finished with their passenger and tranny mounts, but at the very least, a RMM is a must.
Tuning: AccessPort - $600.
Why? I went with the AP. It works for my goals right now. Some people swear by the AP, some have switched to the SB. I have no experience with the SB. All I know is that it is significantly more expensive, so it must be better, right? It seems CP-E has quite a bit more interest in the Speed right now than Cobb does, so that may seal the deal for you. We just got the load cap fix for the AP, so lets see how it works out for some of the guys pushing more power with big turbos. For those of us still using the factory pee-shooter, we won't take much advantage of it.
Bypass Valve: Keep it stock and save $150-300.
Why? I've yet to find hard evidence our stock BPV leaks boost. Some people say theirs was leaking and others say theirs holds 22+ psi. My car ran like crap on the Forge gen1 valve. Maybe I had the wrong spring in there, not enough shims or too many shims. I don't know and I didn't want to be bothered, so I put the stock BPV back in and sold the Forge. I also had to clean and regrease it twice, which was over a span of about 30,000 miles (which I guess isn't too bad). No more "PING.. PING..." when shifting now, which is actually nice, the car a is a lot smoother between shifts and I have no noticable loss of boost/power at 18psi. I'm sure the spring in the stock valve is softer than the blue spring in the Forge valve everyone says to use.
High-pressure fuel pump: PT-Performance - $382
Why? It's a must at higher power levels since the stock pump has been known to suck (in more ways than one). Get the whole pump assembly for piece of mind that it was assembled by someone who most likely knows what they're doing more than you do and at least if something goes wrong, you've still got your stock pump to put back in if the new pump doesn't pass the break in period. I've had my PTP for 10,000 miles and it's great.
Shifter: TWM w/bushings - $250
Struts/shocks: Bilsteins or Koni's - $550-650
Why? The stock dampers suck.
Rear swaybar: Cobb - $165
Why? It'll help with the inherent understeer a FWD usually has.
I've got you just over $3,000 at $3,175 and with some tuning you'll have something near 300whp.