Fryguy22

Does anyone know the size of the stock upper intake plenum. Is it 70 mm? When I bought my car, the guy I bought it from gave me a free plenum. It was a brand new stock plenum which he said he had ported, polished, and painted red (to match my car). The problem is that they painted it the wrong color red (my car is the orangish red, they painted it the darker red). Anyways, the plenum measures 70 mm and I was wondering what the stock size is.

rudemood12

i believe the stock size is 65mm. i believe that when they are ported and polished they increase in size a little bit.

Fryguy22

yea thats what I was thinking too. I think im gonna put this on tommorow. I miss having my pony eblem on my plenum. Ill take a pic of it tommorow and post it.