stock engine/truck exhaust question - Ford Powerstroke Diesel Forum
 
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post #1 of 8 Old 08-12-2013, 05:22 PM Thread Starter
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stock engine/truck exhaust question

2003 F250 crew cab 4x4 7.3 auto.......bone stock except the 6637 air filter. If I were to consider removal of the factory exhaust system, and install a 4" turbo-back system, would there really be any gains? My brother has a 4" MBRP system he wants to sell me...he mistakenly bought it for his '97 and he offered it to me for about half of what he paid for it.
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post #2 of 8 Old 08-12-2013, 05:39 PM
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If emissions are not a problem for you i would take it. it can increase fuel economy a little and you might have a small increase in power. plus it sounds mean. I'd also get a 4" downpipe

--Uriah--
2001 F350 XLT 7.3 PSD ECLB SRW automatic, 160,000(ish)
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post #3 of 8 Old 08-12-2013, 05:41 PM
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just read your post again. sounds like it comes with the downpipe

--Uriah--
2001 F350 XLT 7.3 PSD ECLB SRW automatic, 160,000(ish)
WIX 6637
4in. turbo back straight pipe 5in. tip
Zoodad
ATS turbo shroud
6pos TS chip
ISSPRO Gauges (EGT, Trans, Boost)
Foil delete
$.50 MOD
To come soon: EBPV delete, new steering gear box/ pump
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post #4 of 8 Old 08-12-2013, 05:42 PM
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if you ever chip it it will also help with egts. i would jump on it, mbrp systems are good quality

2000 Ford F250 7.3 4x4 158k miles. MODS: Beans Tunes, 4" exhaust, custom twin intake, boost fooler, ported housing w/ Clays 11 blade billet compressor wheel, foil delete, glowshifts 3 in 1 gauge, AIH delete, bellowed uppies
Future mods: banks intercooler, coolingmist, 6.0 trans cooler, BWD blue powder coated valve covers, BWD coated exhaust manifolds.
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post #5 of 8 Old 08-12-2013, 06:52 PM
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Originally Posted by TSbeanspowerstroke View Post
if you ever chip it it will also help with egts. i would jump on it, mbrp systems are good quality
X2

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post #6 of 8 Old 08-14-2013, 04:33 AM
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Untill you are pushin 400 hp or more the stock exhaust is fine. The stock muffler is the bottleneck. Straight pipe replacing the muffler is very cost effective.

The tone of the exhaust from the larger pipe is the only real advantage at your stage of the game and for half price it's a heck of a deal. If you plan to add a chip it might be marginally worth it...

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'99 E350 DRW Stahl 11' util box van, 7.3 PSD, stock. 138k SOLD

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E'99 F250 extcab, S/Bed 211k. Sidelined due to motor issues.

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post #7 of 8 Old 08-14-2013, 11:17 AM
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the stock downpipe is pretty restrictive too!
it looks tiny compared to a 4 inch downpipe.

99.5 f250 7.3 4x4 260k FF 160/30, PHP Hydra, S&B CAI, 4" Exhaust, RR Billet Wheel, Autometer Gauges, Transgo, Non-Ebpv Pedestal, High Flow Outlet, 08 Tow Mirrors.

Dad-2000 7.3 4x4 110k miles, Autometer Gauges, Superchips 1705, 6637, 4" Exhaust, BD Billet Wheel, TruCool Max
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post #8 of 8 Old 08-14-2013, 11:20 AM
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If you don't want it, let me know what he wants for it lol.
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