I just installed the MBRP 5 inch Turbo-Back and I went to go start up my truck and for the first 5 seconds or so it sounds great nice deep and throaty sound and then all of a sudden the deep and throaty sound goes away and if you walk around the the exhaust it sounds like its making almost a sucking sound. I am not sure if that is normal if that sound is just coming from the turbo or what. Everything is secure and I didn't find any leaks and it sounds great when it's being drove it only does it when its sitting at idle.
Possible Exhaust Leak?
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normal. i got a vid. give me 5 min
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2,542 Posts
dont know how good the vid is. but the turbo vanes are closed when it starts then they open
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