Exhaust Back Pressure

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BuRP

Grey Hound
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Often touted as 'one needs it' or 'crucial', any exhaust will build up at least some of this pressure.
I found a vid that shows how much of it you need....


https://www.youtube.com/watch?v=V2Wv5-ZTOjM


.... as little as possible!
QED


Oh sure, the "test" of the vid is full of holes but let's not go there lol, or... by all means do?
I'll get the popcorn out already  :thumleft:
 
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