Thread: Rear Diffusers
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Old 06-06-2012, 08:22 PM
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Default Re: Rear Diffusers
Originally Posted by maxcichon
Yes, they do.

But only at speeds of 180+ MPH.

Just kiddin'. I have no idea. I did not notice any difference, even with the 15 BHP they added.

Just kidding...
Thanks!

I had my XF going 180 once.....kidding,

Only up to 130 mph.

Thanks again!
 
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