Is your car tuned with the larger TMIC and exhaust?
If so, was fuel delivery the limiting factor in pushing the tune further? I guessing not.

Therefore, adding new injectors, pump and a cold air intake setup, and retuning it will have little to no gains.

Some are of the opinion that the CAI will actually cause a loss in low rev power/response.

If however, you've never had the car tuned with the exhaust and TMIC installed, adding injectors and a pump and getting a tune will net quite substantial gains over stock.

__________________
Signarape!