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Plenum Mods on Production class

  • 2006
  • Cayman S
Mileage: 
92 000
Engine
Atlanta, 
Georgia

I Autocross in PCA class P-06 (production). I wanted to know if adding an inproved plenum - like the IPD or the one from a GT3 is allowed in that class. How about the larger throttle body form the GT3 or 4? Thanks

 

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