Socom-You wouldn't happen to know how they change the legnth of the runners do you? The only 2 things I can think of are:
1) Using a sleeve system which may entail altering the position of the intake maifold either in part or the whole.
2) Using multiple hard pipes that are controled my a series of valves.
Either of these methods would case major design challenges.
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06-325i
07-F650GS
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