Yea, I have the TVT cover/dual intake and bought it mostly for looks. I'm sure the CAI would get you more gains. And as for comparing a ECU tune to a intake, ECU would get you more. from what i hear the ECU on this car is way turned down so tuning it really opens them up. Put the intake and tune together and you pretty much got a TVT250. (aside from spacers, injectors, block off plates....) lol