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06-14-2013, 07:18 AM
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#1
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Senior Member
Join Date: Apr 2013
Location: fort worth
Posts: 234
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cat less
OK who has removed their cats here? Question, when you go for inspection do you have to put your cats back on or do they just plug in the obd2 ?
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06-14-2013, 07:26 AM
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#2
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Senior Member
Join Date: Sep 2012
Location: Saginaw
Age: 38
Posts: 903
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The tune will take care of the light and obd2, but if they physically look you will fail. Worst case, if you go in and fail and they charge you, you can throw them back on and don't have to pay again as long as it's within 15 days.
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06-14-2013, 03:46 PM
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#3
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Senior Member
Join Date: Apr 2013
Location: fort worth
Posts: 234
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Boo.. but has anyone been busted by this? They don't use a sniffer right?
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06-14-2013, 04:17 PM
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#4
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Junior Member
Join Date: May 2013
Location: Fort Worth
Age: 35
Posts: 23
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Originally Posted by Luke
The tune will take care of the light and obd2, but if they physically look you will fail. Worst case, if you go in and fail and they charge you, you can throw them back on and don't have to pay again as long as it's within 15 days.
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This^
Originally Posted by fordplay
Boo.. but has anyone been busted by this? They don't use a sniffer right?
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Anything from 89 to 95 they use the sniffer. 96 and up just the ob2.
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06-14-2013, 04:29 PM
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#5
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Senior Member
Join Date: May 2013
Location: Dallas/Plano
Age: 35
Posts: 561
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All information above is correct. I'm a state inspector and we are suppose to check for cats during our inspection. Given there are plently of shops that do not do their job and check for them. As long as no check engine light is on I'd sy your nearly 80% in the will pass and maybe 20% that an actual inspector would check and fail you.
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2014 Oxford White 5.0 MT-82
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06-14-2013, 04:46 PM
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#6
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Senior Member
Join Date: Mar 2013
Age: 34
Posts: 1,047
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Re: cat less
Aftermarket tunes that tune out the cats will show not ready on system readiness monitors. You can have one "not ready" and still pass. It's funny, ive heard these cars will pass a sniffer even without cats. Ive never had anyone do a visual on my inspections, I usually sit out and watch. Not to say they arent supposed to look underneath....
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The Queen:
2013 Race Red Mustang GT 6MT: 20" AMR's, GT500 AB, JBA LT's and ORX, SCT SF3/X3, MGW Short Throw, Some Carbon Wrap, Spoiler Delete, Eibach Sportlines, Koni STR.T's, BMR LCA's, BMR Relo Brackets, BMR UCA, Freedom Racing PHB, Maximum Motorsports CC Plates, BMR Safety loop, DSS Aluminum DS
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06-14-2013, 06:35 PM
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#7
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Member
Join Date: Mar 2013
Posts: 64
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Originally Posted by JDMLOL
Aftermarket tunes that tune out the cats will show not ready on system readiness monitors. You can have one "not ready" and still pass. It's funny, ive heard these cars will pass a sniffer even without cats. Ive never had anyone do a visual on my inspections, I usually sit out and watch. Not to say they arent supposed to look underneath....
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True True. If you have an offroad on the 2005 and up it will not pass inspection visually or by the OBD2
Besides the cats dont rob that much power
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06-14-2013, 06:57 PM
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#8
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Senior Member
Join Date: Apr 2013
Location: denton tx
Age: 34
Posts: 221
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no cats on my cobra. just got my inspection done a couple weeks ago and it passed.
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06-14-2013, 07:06 PM
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#9
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Senior Member
Join Date: Jul 2012
Location: Roanoke, Texas
Age: 39
Posts: 818
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You will indeed pass if its tuned for it. I have had issues with my previous mustang where I took it in and they knew it had exhaust and put it on the drive on lift to check. That only happened one time though. Most like mentioned earlier will not bother to check if the light isn't on.
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Airaid CAI | Borla S-Type Catback | Amsoil 10w30 and MTG Trans. Fluid
382hp 387ft/lb | 1/4: 12.9 @ 112mph
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06-14-2013, 07:17 PM
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#10
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Senior Member
Join Date: Apr 2013
Location: DFW
Posts: 194
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Simple way around that. Purchase a catalytic converter that has a straight pipe running through it.
Has the looks of a catalytic converter, but its technically not.
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06-15-2013, 05:36 AM
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#11
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Senior Member
Join Date: Sep 2012
Location: Saginaw
Age: 38
Posts: 903
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Originally Posted by slim87gt
Besides the cats dont rob that much power
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15rwhp is what vendors are claiming for o/r pipes, even if that's a little on the high side that's cheap horsepower.
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06-15-2013, 07:46 AM
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#12
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King of the Multi-quotes
Join Date: Jun 2012
Posts: 198
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Originally Posted by JDMLOL
Aftermarket tunes that tune out the cats will show not ready on system readiness monitors.
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Not if you know what you are doing.
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06-15-2013, 11:02 AM
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#13
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Senior Member
Join Date: Mar 2013
Age: 34
Posts: 1,047
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Re: cat less
Originally Posted by Selcouth
Simple way around that. Purchase a catalytic converter that has a straight pipe running through it.
Has the looks of a catalytic converter, but its technically not.
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This.
You could always fab up some heat shields or run gutted ones.
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The Queen:
2013 Race Red Mustang GT 6MT: 20" AMR's, GT500 AB, JBA LT's and ORX, SCT SF3/X3, MGW Short Throw, Some Carbon Wrap, Spoiler Delete, Eibach Sportlines, Koni STR.T's, BMR LCA's, BMR Relo Brackets, BMR UCA, Freedom Racing PHB, Maximum Motorsports CC Plates, BMR Safety loop, DSS Aluminum DS
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06-19-2013, 07:39 AM
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#14
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Senior Member
Join Date: Apr 2013
Location: fort worth
Posts: 234
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Svt performance actually did a test on the 2011 gt and 19 horse is gained on the dyno by killing the cats.. I'm sorry the the best bang for the buck there is. Wait I just looked that's 19 with an X pipe the H pipe is 3 less.. still a bargain ... all I need is a take off set of gt500 mufflers.. someone can have my flow master axle back as trade!! Ha ha
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06-19-2013, 10:07 AM
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#15
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Senior Member
Join Date: May 2013
Location: Frisco
Age: 42
Posts: 138
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Originally Posted by Oxford14Stang
All information above is correct. I'm a state inspector and we are suppose to check for cats during our inspection. Given there are plently of shops that do not do their job and check for them. As long as no check engine light is on I'd sy your nearly 80% in the will pass and maybe 20% that an actual inspector would check and fail you.
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From many years of car modding and inspection experience, this is correct. There are also certain times that you can go in where they are less apt to check under the car than others (specifically when the managers aren't standing over them because they are busy).
This is why I am considering getting the high-flow catted X-pipe for my car when I do headers. There shouldn't be THAT much of a loss compared to catless, and no inspection worries.
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