I was wondering about the front bumper radiator vents just in front of the Porsche emblem like on a GT2 front bumper but not on the OEM 996TT front bumper.

Is this worth adding for any performance gain?

 

if you are not going to change any ducting or converting to actual GT2 front end set up I dont think you would get a performance difference.

I converted my front end to full GT2. main result is an increase in front end downforce with ducted air coming out the top of the nose and over the hood.

also adds some additional cooling while on the track, but for a street car I wouldnt. only benefit would be asthetically maybe