Thread: Loud mechanical backfire noise/feel THUMP? Porsche boxster
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Old 05-01-2020, 05:15 AM   #3
Tailwind
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Join Date: Nov 2018
Location: Pomona, CA
Posts: 158
Garage
When I first got my '99, the engine would slam fore and aft on taking off or stopping hard. All mounts replace cured it.
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'99 986 Base
2010 Golf TDI
'74 914 2.0
'56 356A
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