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      03-06-2013, 06:36 PM   #43
doughboy
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Drives: ....
Join Date: Jan 2009
Location: UK

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I've had a tech reply from David Norton at specclutch.

He said he personally runs the ally fw in a 335is and it gave the biggesr dyno increase of any single application they have tested.

Plus 17.2 rwhp apparently....