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Discussion Starter #1
Started a couple months ago (when my gf was using it to drive to work daily... :x ; I'm pretty sure she was running my baby a bit hard). It comes on at about 2400 RPM and disappears past 2500. It sounds like it is coming from the back end (originally thought it was something with the old correded muffler, but that's been replaced since then with a Magnaflow). Any thoughts?
 
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