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Discussion Starter #1
I've been thinking about getting a rear diffuser latetly to get some better aerodynamics and highway mpg's. So i thought id you guys to see whats up with 'em.
I know F1 cars use them, coupled with a very low ride height, to create a low pressure area under the car and thus get more down force. From what I understand, the diffusers help move the air under the car out faster, which creates low pressure. I figure if I did the same thing, but kept my stock ride height, I could get the air to go under and leave my car in more organized fashion without creating down force.
Am I wack? And are the shelby diffusers functional or for show?
Thanks.
 

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They are just for looks.

There is too much junk under the car to put an effective diffuser on as it would require ducting under the car to make it do anything.
 

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If it means anything to you, since I changed mine I do get more dirt in the back of the car, which means it might be doing something.
 

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Mostly for show on street cars.
 
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