question for the pro's - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 16 Old 11-10-2010, 01:07 PM Thread Starter
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question for the pro's

I have a 03 f350 and today when i was under the truck I realized that my down pipe from my turbo was stock and went into a 4 inch pipe. what size is the stock down pipe and if i go with a 4 inch from my turbo back to where the 4 inch meets up will i notice a difrence or not???
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post #2 of 16 Old 11-10-2010, 01:17 PM
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Stock dp is 3 inch. Yes you will hear the difference and your engine will thank you for the lower egt.

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post #3 of 16 Old 11-10-2010, 03:32 PM
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isn't it different between 7.3 and 6.0 i thought the 6.0's had 3 1/2 dp and 7.3's had 3" dp. could be wrong just would like to clarify

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 #4 of 16 Old 11-11-2010, 05:09 AM
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Yes, the stock downpipe on the 6.0 is 3.5" and you won't have any noticeable difference by upgrading to the 4" downpipe other than a bunch of dents in your firewall from having to beat the new downpipe in place...

Shawn Carlson
EvilEye@powerstroke.org

Proud Navy Vet
2005 F250, CCSB, 6.0 PSD, FX4 (The Sweet Unit is white)
2008 F350, CCLB, 6.4 PSD (Brad-the wife's truck is black)




Engine Mods:
Fluidampr
CCV Reroute (Reinstated)
4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
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post #5 of 16 Old 11-11-2010, 05:18 AM
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Quote:
Originally Posted by Evil Eye View Post
Yes, the stock downpipe on the 6.0 is 3.5" and you won't have any noticeable difference by upgrading to the 4" downpipe other than a bunch of dents in your firewall from having to beat the new downpipe in place...
That's no chit! Everytime my truck articulates a bit, that engine sounds like its sitting in my glovebox because the DP is hitting the firewall


2006 F350 SOLD
* KMC XD Monsters wrapped in Hankook ATM's
* 08 style mirrors
* 4" TB exhaust
* SCT X2 with Gearhead, PHP and ID tunes
* Edge Insight CTS
*Full Bulletproof Diesel kit with remote oil cooler
* Blue FPR spring
* 6.4 Banjos
* Repaired FICM by BPD
* Dfuser coolant filter
* Stage1 MTW turbo



New truck has a Cummins and a handshaker
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post #6 of 16 Old 11-11-2010, 05:23 AM
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Articulation in a Super Duty?? You make me laugh, sir.

BTW, I didn't notice much (if any) difference when I upgraded my downpipe from the stock (3.5") to the aftermarket downpipe (3.5"). If I had to do it all over again, I might have just gone with the cat-back system.

Shawn Carlson
EvilEye@powerstroke.org

Proud Navy Vet
2005 F250, CCSB, 6.0 PSD, FX4 (The Sweet Unit is white)
2008 F350, CCLB, 6.4 PSD (Brad-the wife's truck is black)




Engine Mods:
Fluidampr
CCV Reroute (Reinstated)
4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
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post #7 of 16 Old 11-11-2010, 05:26 AM
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It twists, a little . It doesn't take much to make that DP kiss the firewall


2006 F350 SOLD
* KMC XD Monsters wrapped in Hankook ATM's
* 08 style mirrors
* 4" TB exhaust
* SCT X2 with Gearhead, PHP and ID tunes
* Edge Insight CTS
*Full Bulletproof Diesel kit with remote oil cooler
* Blue FPR spring
* 6.4 Banjos
* Repaired FICM by BPD
* Dfuser coolant filter
* Stage1 MTW turbo



New truck has a Cummins and a handshaker
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post #8 of 16 Old 11-11-2010, 04:18 PM
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Is there much of a egt difference between 3.5 and 4 inch dp?

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 #9 of 16 Old 11-11-2010, 04:21 PM
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Not enough to write home about..
And I have a 4" DP, I'll admit it gave me problems but once I got it in just the right spot it has yet to do rub. This has been 2.5yrs now

Ben Conner
LSP Assistant Director

Got every PSD made...
My DD: '13 6.7L with Optimus Prime's wanker still on the exhaust

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post #10 of 16 Old 11-12-2010, 04:28 AM
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You don't have any hills in TX to test that out on though, Ben . I should fix mine, because all that weight that's on the DP, is directly added to my turbo


2006 F350 SOLD
* KMC XD Monsters wrapped in Hankook ATM's
* 08 style mirrors
* 4" TB exhaust
* SCT X2 with Gearhead, PHP and ID tunes
* Edge Insight CTS
*Full Bulletproof Diesel kit with remote oil cooler
* Blue FPR spring
* 6.4 Banjos
* Repaired FICM by BPD
* Dfuser coolant filter
* Stage1 MTW turbo



New truck has a Cummins and a handshaker
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