2018 Ford Focus ST
Hi I have a 2018 Focus ST and a few months ago I started hearing a metallic rattle sound underneath when I coast in any gear or decelerate. It’s loud but not too loud and only happens when I coast, it doesn’t happen on throttle. I have a Cobb Catback Exhaust and had it for almost two years now. I looked underneath and tried to see where it was coming from and it seems to be coming from the same part on the image. I think it might be a lower intercooler pipe? Anybody else had this issue? I don’t think it’s heat shield because it comes exactly from this pipe. I’ve even taken it off and inspected the inside to see if metal was torn off and rattling but it looks good. Possible exhaust leak?
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