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  #1  
Old 11-03-2011, 11:51 PM
EEklun01 EEklun01 is offline
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Default 05 ford ranger 4.0L Cat delete help?!?!

hi so anyone that owns a 4.0 knows about the three obnoxious cats ford has installed on 4.0 rangers, i am looking for someone who knows someone who has already done this? or a company selling mid pipes to delete them? i've already tried to search for threads but nothing came up for me. ive considered taking the midpipes (downpipes) off the truck and "punching" them out but id like to do this in a better manner

id appreciate any help/opinions
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2005 Ford Ranger xlt 2wd 4.0L v6
LIGHTMODS: airbox mod, 10K HID kit, euro headlights, extra rear leaf, bed rails, 20% and 5% tints, flowmaster 10 Series exhaust and side exit tip Goodyear Wrangler duratech's 31x10.5's
INSIDE: kenwood amp 1500watt, kicker L7 10'' subwoofer in a truckbox

Last edited by EEklun01; 11-04-2011 at 12:43 AM.
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  #2  
Old 11-04-2011, 03:59 AM
edgeman4.0 edgeman4.0 is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

You wont like the results... codes, run like hell and poor fuel economy.
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  #3  
Old 11-04-2011, 04:13 AM
djfllmn djfllmn is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

^this...not to mention if where you live has a yearly emissions test/inspection the truck will fail...besides the cats are high flow from the factory
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  #4  
Old 11-04-2011, 04:46 AM
STL STL is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

Guy I work with punched his out went from 18mpg down to around 14mpga cel stays on and it runs rough.
He ended up putting new ones back on costly lesson learned.
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  #5  
Old 11-04-2011, 06:49 AM
SonofnIrishman SonofnIrishman is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

Yeah, not worth it unless it's never going on the road again. Why do you want them off?
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  #6  
Old 11-04-2011, 07:05 AM
modelageek modelageek is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

Quote:
Originally Posted by EEklun01 View Post
hi so anyone that owns a 4.0 knows about the three obnoxious cats ford has installed on 4.0 rangers, i am looking for someone who knows someone who has already done this? or a company selling mid pipes to delete them? i've already tried to search for threads but nothing came up for me. ive considered taking the midpipes (downpipes) off the truck and "punching" them out but id like to do this in a better manner

id appreciate any help/opinions
I would have assumed the state of Michigan has emissions testing?
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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)

2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
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  #7  
Old 11-04-2011, 08:16 AM
TerrenceStuart TerrenceStuart is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

the engine is designed to work with the cats.
don't mess with them.
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  #8  
Old 11-04-2011, 11:31 AM
EEklun01 EEklun01 is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

Quote:
Originally Posted by modelageek View Post
I would have assumed the state of Michigan has emissions testing?
thankfully Michigan doesn't, the reason i wanted to was to make it sound better and maybe pull a few hp from it but after reading what everyones said so far i am forsure not going to be doing this. thanks everyone for saving me the trouble
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2005 Ford Ranger xlt 2wd 4.0L v6
LIGHTMODS: airbox mod, 10K HID kit, euro headlights, extra rear leaf, bed rails, 20% and 5% tints, flowmaster 10 Series exhaust and side exit tip Goodyear Wrangler duratech's 31x10.5's
INSIDE: kenwood amp 1500watt, kicker L7 10'' subwoofer in a truckbox
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  #9  
Old 11-04-2011, 11:37 AM
cheo cheo is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

Quote:
Originally Posted by eeklun01 View Post
hi so anyone that owns a 4.0 knows about the three obnoxious cats ford has installed on 4.0 rangers, i am looking for someone who knows someone who has already done this? Or a company selling mid pipes to delete them? I've already tried to search for threads but nothing came up for me. Ive considered taking the midpipes (downpipes) off the truck and "punching" them out but id like to do this in a better manner

id appreciate any help/opinions
are u trying to straight pipe it
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  #10  
Old 11-04-2011, 01:01 PM
EEklun01 EEklun01 is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

Quote:
Originally Posted by cheo View Post
are u trying to straight pipe it
no i wanted to have it catless with eathier a glass pack or the same system i have now which is a flowmaster 10 series with a side exit exhaust, for a while tho i had it just straight piped with the cats and it just sounded like every rusted ranger u see driving
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2005 Ford Ranger xlt 2wd 4.0L v6
LIGHTMODS: airbox mod, 10K HID kit, euro headlights, extra rear leaf, bed rails, 20% and 5% tints, flowmaster 10 Series exhaust and side exit tip Goodyear Wrangler duratech's 31x10.5's
INSIDE: kenwood amp 1500watt, kicker L7 10'' subwoofer in a truckbox
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  #11  
Old 11-04-2011, 01:28 PM
STL STL is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

Removing them will not help HP wise
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  #12  
Old 04-30-2012, 12:44 PM
cheo cheo is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

Just put JBA headers on it..then it will sound loud AND U GET HP ITS 22HP IF U HAVE JBA WIRES AND SOME TYPE OF EXHAUST

Last edited by cheo; 04-30-2012 at 12:47 PM.
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  #13  
Old 04-30-2012, 02:14 PM
paintballer4758 paintballer4758 is offline
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Default Re: 05 ford ranger 4.0L Cat delete help?!?!

You can get your truck to run fine if you pull the cats, you just have to have someone retune you computer and do a cat delete. Its your computer that makes the truck run like shit because its trying to copensate for the no cats. If you have the computer reflashed and have them take the code out for the cats it will run fine, and you won't have a CEL on. Im ripping the cats out of mine in a few weeks. but it will run as if you unplugged your O2 sensors if you don't get someone to retune your computer.
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