anyone else?
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Senior User
Joined: Jul 2005
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From: new york
anyone else?
Hey men.I just put an mrbp 4" setup on my truck and i've got terrible resonance inside the cab.Anyone experience the same?The turbo whistle i really like but need to get rid of some of the other noise.Any suggestions?Thanks
Post Fiend
Joined: Jul 2005
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From: 21791
you could try adding a resonator that BCD or DPPI sells, for the 6.0. i dont know if the tuned resonator will only work on the 6.0's pulses, or if it is universal. i am installing a MBRP 4'' turbo back this weekend, what is the "resonance" you are describing (what type of sound) is it the turbo flutter?
FTE Leadership Emeritus
Joined: May 2001
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From: Cabot, Arkansas
Originally Posted by otpracer100
Hey men.I just put an mrbp 4" setup on my truck and i've got terrible resonance inside the cab.Anyone experience the same?The turbo whistle i really like but need to get rid of some of the other noise.Any suggestions?Thanks
Posting Guru
Joined: Dec 2004
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I agree with others - Check CAREFULLY to see if part of the exhaust is touched the cab.
I have a 4"dp into a 5" pipe - and the 5" muffler is straight through.. There is very little extra interior sound (windows up) compared to stock - other than more turbo whistle. At certain throttle settings and loads, there is a low droning, but it isn't very loud and it isn't there most of the time.
I have a 4"dp into a 5" pipe - and the 5" muffler is straight through.. There is very little extra interior sound (windows up) compared to stock - other than more turbo whistle. At certain throttle settings and loads, there is a low droning, but it isn't very loud and it isn't there most of the time.
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Joined: Aug 2004
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When I put the 3" DP- 4" exhaust on my 97 I had the downpipe off 3 times massaging both the body and the last time off, slightly massaging the downpipe before I got the clearance I needed to eliminate the resonance in the cab. If it touches anywhere the increase in in cab noise is pretty remarkable.
