BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)


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      06-02-2009, 11:53 PM   #23

Drives: R32
Join Date: Nov 2007
Location: Badlands

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Originally Posted by esses View Post
Yeah, at high speeds (read: limiter removed) the stock diffuser flexes outward. Is it going to slow you down or make you fly? Probably nothing noticeable, but it is happening. Is it going to matter to 99.99% of 1 drivers? Nope.

But, there is a reason the performance version is cut with mesh inserts, as seen in this photo from United BMW's website:
The stock and performance diffusers dont add any negligible downforce. So any compression or distortion shouldnt be noticeable.Kinda a shame with the lame diffusers because the floor is pretty smooth on these cars.
The reason for holes on the performance diffuser has got to be either for looks or heat management.
Appreciate 0
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