Thread: Resonators or Cats
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Old 06-25-2019, 05:47 PM   #14
Trochoidal

 
Drives: 2017 Camaro 2SS A8
Join Date: May 2019
Location: USA
Posts: 1,656
This company also talks about stock exhaust.

https://www.mishimoto.com/engineerin...system-review/
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