Unless you can withstand a LOT of vibration, only use the stock rubber mounts. Anything stiffer will transmit a surprisingly high amount of vibration.
I don't even use a solid or semi-solid engine mount on my Spec Boxster race car because of the high vibration level.
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
Last edited by thstone; 10-23-2015 at 12:05 PM.
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