Jamesy 88 New Member 22 Member For: 13y 7m 10d Gender: Male Location: Eastern Suburbs, Melbourne Posted 07/05/15 01:21 AM Share Posted 07/05/15 01:21 AM Hey guys, I've got an issue with my BF xr6 turbo. It's developed a raspy note on idle and take off and when backing off or giving a blip of the throttle I can hear this rattling noise coming from around the cat area under the car. It's been fitted with a a 100 cell ballistic cat when it was tuned around 3 years ago but has only developed this noise in the past year or so. I've also noticed that car feels a bit laggy on boost and sometimes it sounds like it pinging under WOT.So would this be a collapsed/broken down cat issue or something else? I'm guessing if the cat was collapsed it would cause flow issues which may lead to my pinging issue?Thanks guys Link to comment Share on other sites More sharing options...
phantom xr6t Talks Cheap, Let's Race Member 596 Member For: 18y 1m 7d Gender: Male Location: Atherton, FNQ Posted 08/05/15 02:29 AM Share Posted 08/05/15 02:29 AM crawl under and hit the cat with your fist, if it rattles then the substrait is loose and possibly causing you problems Link to comment Share on other sites More sharing options...
Jamesy 88 New Member 22 Member For: 13y 7m 10d Gender: Male Location: Eastern Suburbs, Melbourne Posted 08/05/15 08:50 AM Author Share Posted 08/05/15 08:50 AM Thanks for the help mate Link to comment Share on other sites More sharing options...
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