Compression Ignition Addict
Join Date: Apr 2012
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The small pipes connecting to the exhaust manifolds are your up-pipes. check around the fittings for soot; they are well known for leaking. Mainly on the top fittings.
Exhaust comes straight from the turbo. From the turbo down is the down pipe. Some trucks have cats between the down pipe and muffler. I think the 3' section of pipe your talking about is your muffler, usually just behind the tranny.
If you order a mbrp kit or similar; it will come with everything you need. Its a very easy swap/install. My MBRP came with a 4" down-pipe.
I honestly do not remember what my stock pipes looked like, but my down-pipe bolts right to the turbo and its not reduced or anything.
I would say it will take you no longer than 1 hr to remove your old system and install the new one.
I like my MBRP but it seems like those diamond exhaust systems are popular as well.
Depending on your plans, I honestly do not think you gain much with 4" exhaust over stock. The sound difference is awesome though. I would do other mods first if you have them in mind. Choice is yours.
If I did it all over again, I would not have most of my mods; just not worth it IMO.
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03 F350 7.3L Auto CC LB Dually 410's (LS Rear)315's
PHP/Beans tuned, 250/100 FF inj's, BTS Tranny, Strictly Diesel complete fuel system w/RR & FB Delete, Pius LASB from Irate, Swamps hvhf IDM
Autometer Nexus Guages (TT,FP,BP,EGT), 4"MBRP, DieselSite Coolant filtration system/billet housing/HP X-Over line, Baldwin PA2818(6637) RR Boots, 26 row 6.0 Tranny & PS Cooler, LarryB's Denso Starter