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I have a different view.
Despite what "Bell" says, and I consider him a friend and very experienced and incredibly knowledgeable expert tech, our shop experience has been different. But, that makes the point that it is great to gather as much info as possible from varying locations and experts. I 100% believe what he says.
Up here, where summers are hot and winters are very mild,(rarely below freezing) we see far more bore scoring issues than IMS issues. We build on average 6 M96/97 motors a year, 5 of those would be from Bore Scoring.
That said, we do countless IMSB replacements as preventive maintenance (common in our marketplace) that perhaps we do not get to see as many failures.
The failure is real. But these motors have other issues that are not really preventable (parts wise) and we see far more taken out from these issues.
All of that said, It is a good investment to solve the the IMS issue before it becomes an expensive problem.
Cheers
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Turn3 Autosport- Full Service and Race Prep
www.turn3autosport.com
997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3
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