Wow funny that I came across this. I was runnin an m3 in my stock 04, 3 nights ago, and when I was at the top of third around 90mph I went for 4th but hit 2nd! the car did a nose dive. But yeh , it idles fine and doesen't smoke, but when it's reved up it sounds raspy, and it's getting worse...I also have the mad dog sts.
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