Mbrp
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Tuned
Joined: Jan 2005
Posts: 344
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Mbrp
2000 7.3 here. Anyone have any trouble when installing an MBRP 4" exhaust? I can't get the downpipe to stay away from the frame. It's pretty evident when turning left, makes some vibration on the floor. Also, the rubber mount close to the trannny support is being pulled forward. Is this normal? Other than that, I love the sound!
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Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
I just installed a MBRP on my 2000 Excursion and didn't run into any problems. The fit and finish were second to none. It went on like an OEM piece straight from the factory.
Other than wrestling with the downpipe to get it clamped onto the turbo exhaust, this was the easiest exhaust system I've ever bolted onto a vehicle.
Stewart
Other than wrestling with the downpipe to get it clamped onto the turbo exhaust, this was the easiest exhaust system I've ever bolted onto a vehicle.
Stewart
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Originally Posted by XylemXorro
S
What about the rubber mount close to the tranny support, is it being pulled forward?
What about the rubber mount close to the tranny support, is it being pulled forward?
Everything fits like it was from the factory.
Stewart
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Joined: Sep 2003
Posts: 12,240
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From: Houston, Texas
Everything should fit they way it did from the factory. XylemXorro, I had the same problem when my dealer "neutralized" my exhaust. They took it apart and didn't put it back together properly. As a result, the pipe touched the frame and was causing a short, killing my performance and making a terrible noise if I hit a bump or shut my truck off. Loosen everything up and see if you can't get it to fit the way it should.
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Joined: Mar 2006
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From: Rapid City SD
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Joined: Sep 2003
Posts: 12,240
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From: Houston, Texas
Originally Posted by Trent Fliginger
what kind of mileage gain did you see with the 4" MBRP? that will be my next mod.
Once I had it on, I loaded up my tuner and was off. I also replaced the MBRP muffler with an Aeroturbine 4040 (the next day) that I already had on the stock system. But with your intake, you should see the 2-4 mpg gain as advertised (on average about 2 mpg without a tuner). Bone stock, I was getting 15-16.5 around town and about 17.5 one the freeway. With the Kwik filter, SCT X-Cal 2, Aeroturbine Muffler, and the MBRP pipes, I normally see no less than 17.5-18 mpg around town and as much as 22 mpg on the freeway.
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