xr6t4life Member 129 Member For: 15y 9m 14d Gender: Male Location: Perth WA Posted 09/09/10 07:20 AM Share Posted 09/09/10 07:20 AM it may be a high flow cat but the core can sometimes dislodge from its mounting points and move around blocking some flow (mostly on the cheeper cats), you say you have a ratling sound from the turbo side so maby it could be something to check out but it could be something completely difrent as I said its just an idea Link to comment https://www.fordxr6turbo.com/forum/topic/70373-boost-problems/page/2/#findComment-1038637 Share on other sites More sharing options...
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