2003 excursion 7.3 - Ford Powerstroke Diesel Forum
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Old 09-17-2010, 12:01 PM
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2003 excursion 7.3

I thought I would ask you guys what exhaust would be best for my beast. I currently have a cold air intake on it and a Hypertech programmer. I am thinking of upgrading to a Diablo, but before that, I want to put more free flowing exhaust on it.

Suggestions???

This is my daily driver and I am not drag racing it, but I do like the power and torque this thing has!!

I loook forward to all suggestions!

Thanks!
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Old 09-19-2010, 12:51 AM
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I just put a 4" turbo back MBRP W/Muffler from stealth on mine and love the sound. easy to put on and a good price. Even came with a Nice 5" tip
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Old 09-19-2010, 10:28 AM
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I like the straight pipe sound personally and any exhaust shop can do it for $50, or if you have a welder you can do it for $20
I would skip the diablo and get a tuned TS style chip, either TW, PHP, or other. better tunes and switch on the fly.
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Old 09-19-2010, 10:34 AM
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X2 on the TW or PHP chip as your next upgrade. As for the exhaust, i love the sound of MBRP's muffled exhaust, but any 4" will do.
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Old 09-19-2010, 04:01 PM
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you lose power with a straight pipe
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Old 09-20-2010, 10:00 AM
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Quote:
Originally Posted by cesspool View Post
you lose power with a straight pipe
On a gas engine that's true, and possibly on a NA diesel maybe, but on a turbo diesel you do not want any restriction after the turbo, if the engine needs back pressure the turbo itself creates a lot, the engine usually see at least 1.5 times the back pressure as the boost you are seeing.
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Old 09-20-2010, 11:31 AM
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Quote:
Originally Posted by countryraised View Post
On a gas engine that's true, and possibly on a NA diesel maybe, but on a turbo diesel you do not want any restriction after the turbo, if the engine needs back pressure the turbo itself creates a lot, the engine usually see at least 1.5 times the back pressure as the boost you are seeing.
its well known the muffler creates power
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