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+--- Thread: Sounds like a boost leak (/showthread.php?tid=4463)
Sounds like a boost leak - Lostfarmboy - 04-26-2019
My demandated 871 sounds like it has a boost leak but the noise is coming out the exhaust. I don't understand what could cause this. Any ideas would be helpful. Performance and fuel mileage don't seem to have changed any.
RE: Sounds like a boost leak - Chamberpains - 04-26-2019
Did you hollow everything out properly when you demandated it? There should be nothing but empty cans attached to your truck. Anything left inside them will cause soot build-up and exhaust restrictions.
RE: Sounds like a boost leak - Lostfarmboy - 04-26-2019
I left about 1 inch all the way around the outside everything else is gone