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[Perfectlap]

don't kick yourself for not doing it the first time. At least you have the ability to tackle this job. If I were that useful, knowing what I know now, it would have been the first thing I modified...way before wheels, aero, seats, bla bla. Although this upgrade is only a recent development in Porsche world. I think this fix also makes your car more attractive come resale time. I'm mulling over a C4S for winter duty, if I do go that route (vs just waiting to buy an '09 in a few years) the IMS will be the first thing I do. The car will make a b line directly to my Indy mechanic.