3" vs 4" exhaust
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Postmaster
Joined: Jun 2010
Posts: 2,928
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From: Oregon City, Oregon
3" vs 4" exhaust
When I bought my truck ('01 7.3 cc srw 4x4) 6 years ago I didn't really pay too much attention to things like an after market exhaust. My truck has a custom 3" exhaust which is functioning perfectly.
I am ever so slowly upgrading my truck for pulling my cab over camper and boat, making mechanical upgrades as things start to fail and it's also my daily driver.
I plan to eventually put a DP Tuner in this truck for improved performance and fuel economy. But i will put guages in before I do that.
Is there enough of an advantage to having a 4" turbo back exhaust instead of my existing 3" system?
I know that the 4" will provide lower egt's and slightly improved fuel economy over stock but will the expense of installing a 4" MBRP system be realized in improved drivability and such?
Thanks in advance for everyone's responses.
I am ever so slowly upgrading my truck for pulling my cab over camper and boat, making mechanical upgrades as things start to fail and it's also my daily driver.
I plan to eventually put a DP Tuner in this truck for improved performance and fuel economy. But i will put guages in before I do that.
Is there enough of an advantage to having a 4" turbo back exhaust instead of my existing 3" system?
I know that the 4" will provide lower egt's and slightly improved fuel economy over stock but will the expense of installing a 4" MBRP system be realized in improved drivability and such?
Thanks in advance for everyone's responses.
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
When I bought my truck ('01 7.3 cc srw 4x4) 6 years ago I didn't really pay too much attention to things like an after market exhaust. My truck has a custom 3" exhaust which is functioning perfectly.
I am ever so slowly upgrading my truck for pulling my cab over camper and boat, making mechanical upgrades as things start to fail and it's also my daily driver.
I plan to eventually put a DP Tuner in this truck for improved performance and fuel economy. But i will put guages in before I do that.
Is there enough of an advantage to having a 4" turbo back exhaust instead of my existing 3" system?
I know that the 4" will provide lower egt's and slightly improved fuel economy over stock but will the expense of installing a 4" MBRP system be realized in improved drivability and such?
Thanks in advance for everyone's responses.
I am ever so slowly upgrading my truck for pulling my cab over camper and boat, making mechanical upgrades as things start to fail and it's also my daily driver.
I plan to eventually put a DP Tuner in this truck for improved performance and fuel economy. But i will put guages in before I do that.
Is there enough of an advantage to having a 4" turbo back exhaust instead of my existing 3" system?
I know that the 4" will provide lower egt's and slightly improved fuel economy over stock but will the expense of installing a 4" MBRP system be realized in improved drivability and such?
Thanks in advance for everyone's responses.
Bone stock it comes with a 3" downpipe out to a 3 1/2" exhaust the rest of the way.
Master of Strokes
Joined: Mar 2007
Posts: 6,808
Likes: 25
From: CA
If your truly at a 3 inch system I would look here for a 4 inch MBRP system.
Riffraff Diesel: MBRP 4" Turbo Back Aluminized
Riffraff Diesel: MBRP 4" Turbo Back Aluminized
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