I installed the washers as spacers to prevent the bolt from hitting the horizontal damper as described earlier.
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Another shot of the shield that I decided did not need to be removed. There seems to be plenty of clearance from the muffler.
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I've read in other posts people say the factory Nismo exhaust is not a true dual exhaust and narrows to a Y pipe like the standard exhaust so I wanted to post a pic for any confused readers or doubters. The Nismo is a true dual exhaust with an H pipe crossover underneath the heat shield.
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