Quote:
Originally Posted by speedracerlo
use a hose clamp from Home Depot to hold the valve open, it works well
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Thanks. Would you happen to know if the 750i has just one exhaust flap, or are they on both sides? Any photos would help me understand the placement
On my older E46 I just pulled a vacuum hose and put a golf tee right in there which really helped. When I got my ZHP (many moons ago!) it did not even have the exhaust flap which makes we wonder if M package cars have them at all.