Durastroke followers I have a question - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

 
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post #1 of 6 Old 07-20-2012, 04:43 PM Thread Starter
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Durastroke followers I have a question

Hey guys I have had the privilege of enjoying a stg1 creation from the great Madpowerstroke. Well I am wanting to get a new down pipe back exhaust, I was just going to go with a 3.5" down pipe but I got thinking and know everyone says you don't need any bigger unless you get bigger injectors turbo or some other things. I know the stg1 isn't a ton bigger but does having it give enough reason to justify a 4" down pipe?

03 F350 6.0 SRW 4X4 lariat

481hp 832tq

8" super lift 385/70r16 Toyo MT's
FatBoy traction bars
Durastroke stg1
intake
MBRP 5" straight pipe
Custom tuned by Vivian "Looney Wild Track"
Edge Insight CTS
Zoodad mod
high idle mod
6.4 banjo bolts
Updated fuel pressure regulator (Blue spring mod)
EGR cooler delete
6K 55w HID's
6k 35w fog HID's
B&W turnover ball


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post #2 of 6 Old 07-20-2012, 04:49 PM
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No it does not but simply wanting a 4in down pipe justifies it though. I bought a 4in down pipe exhaust when I had stock injectors and sticks but there was no need. Nevertheless, I would still buy it again as well.

Nate
2006 F350 (BACKYARDIGAN) - 67mm Turbo, 215/85 injectors, WPE intake manifold, NB/Warren Trans, and more stuff that I don't care to mention....
2006 F250 (LITTLE DURTY) - WPE Manifold, Up-pipes, EGR delete kit, and Tuned By ME
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post #3 of 6 Old 07-20-2012, 06:35 PM
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When I bought my truck it had a 4" downpipe on it! I knew the truck had problems, thats why I got it so cheap! Well once I got it on the interstate, it had a vibration all the way home. I was convinced the trans was making a noise. Even though it worked perfect!

When I took the cab off for studs, I saw where it was a 4" pipe and it was rubbing a lil piece of the firewall!

So I massaged the firewall, with a 3lb sledge! No more vibration!

It is hard to get in there and you may have to make some firewall "adjustments", but I like mine!

2004 F250 CC SB
SCT Xcal2 SPD+ Lonney Wild Track
ARP Studs
PHP FICM Tuner
2003 Turbo
Coolant Filter
EGR Delete
4" Magnaflow
Airaid Intake
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Blue Spring
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post #4 of 6 Old 07-20-2012, 06:54 PM
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I had a really bad vibe from mine too, but an oxy acetylene torch with ball pin hammer and five min. My noise is bye bye
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post #5 of 6 Old 07-21-2012, 05:10 AM
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I have a MBRP down pipe that's taking up space PM me if you want. You would need a clamp for the joint.

I recommend getting MBRP piping since you can get the DP and cat delete pipe together. They will fit the OEM tubing just fine...after that if you wanted delete the muffler. For VA inspections you can swap the cat back in easily.


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post #6 of 6 Old 07-21-2012, 12:34 PM Thread Starter
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^ I'm already straight piped and I'm a va state inspector so no worries.

03 F350 6.0 SRW 4X4 lariat

481hp 832tq

8" super lift 385/70r16 Toyo MT's
FatBoy traction bars
Durastroke stg1
intake
MBRP 5" straight pipe
Custom tuned by Vivian "Looney Wild Track"
Edge Insight CTS
Zoodad mod
high idle mod
6.4 banjo bolts
Updated fuel pressure regulator (Blue spring mod)
EGR cooler delete
6K 55w HID's
6k 35w fog HID's
B&W turnover ball


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