What bore scoring is & why it can happen to 1999-08 Porsche 911s, Boxsters, & Caymans | 1 of 4
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Block & bore surface geometries & contributing factors to bore scoring in M96/M97 engine | 2 of 4
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Porsche Engine Failures MADE SIMPLE - Hartech Explain IMS, RMS, Bore Scoring for 911, 986 & 987
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How to prevent or slow the progression of bore scoring in your Porsche M96/M97 engine | 3 of 4
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NEVER buy a Porsche until you check for this!
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Porsche 987 Cayman... A Guide Of The Common Issues To Look For When In The Market for a 987!!
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A Porsche Like You've Never Seen it Before: Watch Hartech Tear Apart the Engine in My 987 Cayman S
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How to fix bore scoring in your Porsche's M96/M97 engine | 4 of 4
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