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      09-11-2020, 11:50 AM   #34
Remonster
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Drives: E90 M3
Join Date: Dec 2007
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Quote:
Originally Posted by Drew10 View Post
I thought there must be a functional reason for the exhaust placement and this very well could be it. The other thing I noticed though is the "truck nuts" muffler seems to be hanging down into the air that is flowing out from under the car. If aerodynamics is the reason for the placement of the exhaust, you would think they would tuck the car's nuts away.
The F80 / G80 truck nuts muffler is hanging down into air flow on purpose, it acts as a simple diffuser without the expense of an actual diffuser (the expensive part is making room in your vehicle to have a true diffuser) and reduces drag by preventing air from getting trapped by the rear bumper.
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