3.4l 996 intake manifold on 3.2S motor

[jaykay]

thanks man.....that is a very significant difference! I will be very interested in how this changes the performance of the engine.

I may be mistaken but I believe that this diameter is bigger than anything upstream on the 996 intake.

This change may really enhance the effect of a larger TB, putting the relationship of throttle body diameter to plenum entrance at 80 to 90 percent while allowing for more air volume vs the smaller 3.2 plenums