Gutted cat or delete kit? - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 9 Old 02-28-2008, 11:50 PM Thread Starter
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Question Gutted cat or delete kit?

Good day! I wanna get a little more sound (not volume/decibels) outta my 6.0. All is factory diam. exhaust pipe. So far I've just taken the factory muffler off. It improved the sound somewhat. I'm still under factory warranty, so don't wanna rock the boat too much... What difference has either gutting the cat and running straight from there (no muffler) done for ya'll, as far as performance/sound? Or just straight deleting the cat and running all straight pipe back, for that manner????

'04 F-250 Super Duty Lariat FX4 Crew-Cab. 6.0 Powerstroke. 4.5" Donahoe Racing lift, 35" Toyo Open Countrys, Road Armor custom front bumper w/ Warn 12000, Whelen 90 watt 6-strobe system and grille mount LED's. (Firefighter). Alpine 1200 watt sound system w/ subs.



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post #2 of 9 Old 02-29-2008, 12:38 AM
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I say you should delete the cat and keep it so you can put it back on when you take it to the dealer for warranty issues.

-Wes-



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post #3 of 9 Old 02-29-2008, 12:52 AM
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Delete Kit, cats are expensive to replace.


Your Actions Today, Decide Your Future Tomorrow

2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
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post #4 of 9 Old 02-29-2008, 05:35 AM
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I agree, go Cat Delete and keep your Cat in the garage just in case you need it down the road. They make a great conversation piece hanging up on the wall too!

Tad Abraham
2005 F-350 DRW 6.0PSD Longbox
CrewCab 4.10's and a Limited Slip - Nicknamed "TINY"
B&W 5'er/Turnover Ball on top, better MPG than my half-ton 155,000+ on the clock
SCT X3, DJ's Diesel Performace Looney 160,Tow 50 and Econ 40 Tunes
Autometer triple pillar with Trans, Boost and Pyro Ultralite II's
4" Farmboys exhaust with cat delete
ARP studs installed and EGR Valve welded by Scott @ Trucks Unlimited
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post #5 of 9 Old 03-02-2008, 06:09 PM Thread Starter
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Huh. Has anybody on here done that? And not done any other mods? Like airboxes, chips, etc??? How will the truck run w/ the cat and muffler deleted? Anybody done it yet???

'04 F-250 Super Duty Lariat FX4 Crew-Cab. 6.0 Powerstroke. 4.5" Donahoe Racing lift, 35" Toyo Open Countrys, Road Armor custom front bumper w/ Warn 12000, Whelen 90 watt 6-strobe system and grille mount LED's. (Firefighter). Alpine 1200 watt sound system w/ subs.



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post #6 of 9 Old 03-02-2008, 06:15 PM
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You don't need any other mods. I removed mine and the truck whistles like a jet, and has more power.

'94 F-350 CC DRW 2WD Turbo IDI 7.3
Rebuilt E4OD w/"updates" & billet Precision "RV" TC
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post #7 of 9 Old 03-03-2008, 08:42 PM
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i have a cat-back 5 inch MBRP, sounds great.. but then i went and took a saws-all to the cat and welded a pipe there, the ford dealership here said it was totally cool that it won't go against my warranty.. and now it has a sound that people literally miles away are calling me and telling me that they can hear me

2007 Ford F-250 Harley Davidson editon
Stage 2 Intake
Catback MBRP 5inch with a cat delete
Bullydog triple-dog
Rebuilt Tranny: Billet torque converter, stronger clutches, shift-kit, deeper pan
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post #8 of 9 Old 03-04-2008, 07:20 AM
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I have 5" from the first bend after the downpipe, my truck actually went to ford yesterday and the tech working on it told me that on the 6.0 ford does not have any issues with aftermarket upgrades after the turbo. By the way it makes them sound like a jet taking off!

2006 King Ranch
AFE stage 2
4.5"down to 5" straight out
edge w/ hot tune
egr delete
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post #9 of 9 Old 03-04-2008, 06:08 PM
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Yeah, I have a stock straight pipe, I just bought a 2' section of pipe a coupling, and a clamp. Just cut the pipe behind the cat and reuse the flare before the cat. Can be done fairly easily in the driveway.( Keep the penetrating lube and a pipe wrench nearby to get the new pipe into the flare though) The sound is great for the little money you'll spend. If you just have the muffler off now, the cat will make a huge difference in the sound of the whistle!

2003 6.0 CC Long Bed King Ranch
K&N intake
SCT X3 with INSANITY tune by elite diesel
Stock Straight Pipe
:burnout
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