Quote:
Originally Posted by eric@helix
The wastegate rattle sounds different with catless DPs, however, it sounds more like you have fitment issues: when the DPs are cold, they're rattling against each other, when they warm up, they expand and don't hit.
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If anything it'd be the opposite. Expanding would limit your clearances.
It sounds like you're describing wastegate rattle. Otherwise, I'd check and make sure the pipes aren't rubbing each other.