Thanks
Smoother bends than the original plenum, and bigger throttle body, and yes, bigger is better on this area! The only compromise is noise. A bigger throttle body is noisier (air noises). But really, you don't notice it.
The problem with the 2.5 is: where to find a bigger throttle body? A 993 TB? Or an aftermarket one?
The plenum has the same shape as the 996 plenum, straight T, so it'll be pretty easy to make.
Thought, it is bigger than an "e-gas car" plenum, so it would be more expensive!
If someone want's to be a guinea pig, I'll be happy to work with him!