This is designed to be an intake silencer delete for my V1 WRX (EJ20G). It is still a work in progress, but it does function as I intended. Your mileage may vary and I am not responsible if you grenade your engine. I did not include the IACV or Vacuum connections because the are unique to my vehicle.
Printed in ABS with a dense infill.......if you plan to use this, you must print it in ABS or something with a higher tolerance for heat. NO YOU SHOULD NOT PRINT THIS IN PLA!!!!!!!!!!!
I scaled the print to 101% and used acetone to smooth the it and get to the O.D. that I needed.
I had to section my print in order to achieve success. For some reason, my printer can not complete it in one solid piece. It tends to get hung up on the IACV hole and dislodge the print from the bed.