Straight pipe factory exhaust? - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 05-14-2012, 07:11 PM Thread Starter
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Straight pipe factory exhaust?

Just finised EGR delete, turbo cleaning, and oil cooler replacement on my '03. Will probly be turning my attention to exhaust soon. I'm thinking I'll probably just purchase a stick of 3.5" pipe and splice it in to remove the cat and muffler. How many have done this and what are your thoughts?

SOLD--2003 F-250 RC/LB FX4, 6.0, 5R110, EGR cooler capped off at both ends, CAT EC-1, Rotella T6, Motorcraft fuel and oil filters, Amsoil in diffs/T-case, blue spring update, ScanGuage II, 5" Diamond Eye exhaust (not cat, no muffler ) 4" downpipe, Cooper Discoverer S/T's (LT265/75R16E).
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post #2 of 14 Old 05-14-2012, 07:17 PM
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My truck had a straight piped factory exhaust when I bought it. Its sounded good. Not too loud. It definitely cant hurt anything. Just be careful of inspection. I'm exempt. If you plan on tuning it get the 4inch.

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post #3 of 14 Old 05-14-2012, 08:29 PM
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I bought delete pipes for the cat and muffler. Very happy. No drone.
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post #4 of 14 Old 05-15-2012, 05:41 AM
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I deleted the CAT on my 05 with a staight pipe. It sounded much better then stock. I have a TBE now and was thinking about selling my CAT delete pipe if you want it..Its just sitting here..

05 CC SB 6.0 FX4
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post #5 of 14 Old 05-15-2012, 06:11 AM
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factory exhaust straight piped is my favorite as far as sound and not having hardly any more noticeable noise in the cab when cruising

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post #6 of 14 Old 05-15-2012, 10:14 AM
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you will love it! Growls when you step on it and purrs when you ride!!!

06 KR 250
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post #7 of 14 Old 05-15-2012, 02:39 PM
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I did this to my 03 and really like the sound. Not too noisy for cruising and sounds great when you get "into it".

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post #8 of 14 Old 05-17-2012, 04:20 PM
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Thats what I have planned for my 05 E350... Started punhing out the cat about a month ago, little at a time... I wanna turn it out between the batteries with a good size tip

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post #9 of 14 Old 05-17-2012, 08:10 PM
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Personally I like the sound of a full 4" TB straight pipe setup. The patched factory setups sound to raspy IMO.
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post #10 of 14 Old 05-23-2012, 04:59 AM
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i went to an autoparts store and oredered a 10 foot piece of 3.5 in pipe.. deleted the cat one night and then the muffler the next. its pretty simple to do however there is a 6.25 in elevation difference between the input side and exit on the muffler. basically i had to cut a few angles and do some welding to accomplish this. in my opinion anyone should be able to handle it. Besides the sound you get once the muffler is gone really makes you want to clean out the turbo more often!
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