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It is general question concerning DENSO SPARK PLUG that is often.
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| Since the 996R, the interior of the Testastretta (narrow head) engine's plug holes have been very narrowly machined, and with regular plug wrenches, the socket OD hits the wall and thus the plugs cannot be fully tightened. (Not possible with a 21.5mm OD) In this case, a thin-wall plug wrench is required. [We recommend the "NB3-16SP (nepros)" or the "B3A-16SP" by KTC.] |
