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Old 07-04-2004, 07:51 PM   #23
Scooby Specialist
Member#: 23015
Join Date: Aug 2002
Location: Wellingborough, UK
95-> GC8
Black, blue and blue


External wastegates still use a controller of some sort to vary the boost beyond the level the spring alone can sustain. You can also use the positive boost to force the gate shut aswell as not opening it. This allows a weak spring to be used but still hold high boost levels.

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