I do believe Particlewave is one of the most helpful posters here
As far as the rest refer to post #36
to clarify
Putting aero stuff on a car without doing aerodynamic testing or at very least calculations using computational fluid dynamics applications will yield you unknown results and could be dangerous causing for example instability and then causing the car to go out of control putting innocent people at risk
If it was aero from Porsche, to probably has been tested from outers, especially crap from china, unlikely it was tested
And the only thing I do in a Pub is drink beer
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