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Old 05-19-2017, 06:33 PM   #1
The Fed
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Drives: 2016 Golf R
Location: Florida
Join Date: Dec 2012
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Motorcycle vs. Truck

http://rare.us/rare-news/caught-on-v...-tell-the-tale
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(Mostly) Posted by Josh/AWE. Flapper valves are open at idle, close after 1100 RPM during part throttle. Full throttle 1st-4th gear the valves open until throttle let off. 4th gear, 1500 RPM to full throttle closed, closed until 3500 RPM, then open until lift off throttle.
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