the throttle body bipass is doable, and will theoreticly yeild gains due to lower intake charge temp. it is there for the specific purpose of heating the incomeing air for cold starting. so if you live in a very cold area, dont do it. also with the EGR deal, if you have emissions, dont do it, you will no longer pass the test. also, i would argue that there is no real loss of power with the system, and your car is designed to run with it, which makes me think that if you take it off, then it will not run as well. but as far as power, couldnt really tell ya. i would just say if you live in alaska, dont do either, and if you live in texas, then only concider the TB bypass.
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