Upper plenum porting


Jun 17, 2008
Have my stock upper plenum off someone already smoothed out the raised areas . The square tab below the t-body is still there can that be knocked off and smoothed ?Is there any other places that can be opened up
There isn't much gain in whittling on the stock plenum. Open up the inlet a bit to eliminate a lip between the throttle body and the I.D..
pics of my upper
I dont think some mph sleep in with stock turbo
may be some gaine with the te44
i will see it at spring
the inlet was open to 62 mm tbody



  • photo chars 002.jpg
    photo chars 002.jpg
    38.8 KB · Views: 158
  • photo chars 003.jpg
    photo chars 003.jpg
    31.5 KB · Views: 164
  • photo chars 004.jpg
    photo chars 004.jpg
    31.5 KB · Views: 162