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Without CFD or 10 different iteration each dyno tested, there is no way to make a real improvement.
The plenum has the shape of the stock one, with larger radiuses on the T. That is the only part that is 100% proven beneficial.
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ASE certified Automotive Master Technician.
Porsche Tech in France.
www.benautodesign.fr
Ben-Auto-Design : Performance parts for 9X6 / 9X7
1982 928 S Euro
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