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  1. E46 General
    A while ago I ran across a thread about a valve in the tailpipe of an E46. Someone mentioned they were there to keep volume down at low speed and open up the exhaust tone at highway speeds. It was claimed that only 330i's had them. This morning I noticed that exhaust was only coming out of...
  2. E46 General
    Notice how only the left tailpipe is grimed up with exhaust, while the right looks comparatively clean. Not sure what to make of this. Thoughts? Is the right pipe non-functional?
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