No CEL w/AR Catted DPs so far, but...

I335 · 12-31-2010, 05:24 PM

I had my AR catted DPs for 2 weeks now and probably 300 or 400 miles and so far I haven't seen a CEL. Does anyone know if that means I'm in the clear or could the CEL pop up quite a ways down the road still?

momstmg78 · 12-31-2010, 05:32 PM

Your probably fine until the cats go.

I335 · 12-31-2010, 05:41 PM

Quote:

Originally Posted by momstmg78

Your probably fine until the cats go.

Thanks. Do these cats have a short life span?

e90fun · 12-31-2010, 05:43 PM

Quote:

Originally Posted by I335

Thanks. Do these cats have a short life span?

bout 9 lives.
lol had to do it.

Daya · 12-31-2010, 05:44 PM

I was fine on stock tune with AR catted DP, if you up the boost with a piggyback or flash there is a chance you will get an SES light - nothing that an o2 sim can't fix

scottp999 · 12-31-2010, 06:14 PM

Mine lasted 1 year before the CEL came on. I assume they are right near the line to throw the light (the magnaflow, high flow cat version) and when they age for several months, they cross the line and throw the CEL. I have the procede o2 modifier at 80% and it takes car of the light. I bet next summer the light may come on again and I will have to go from 80% to 70% on the o2 modifier setting.

Forcefed3 · 12-31-2010, 06:39 PM

You are not clear at all, haha. Mine didnt come on until about 250 miles and I am catless. But there is always a chance that you will be fine.

Penn999 · 12-31-2010, 06:58 PM

Quote:

Originally Posted by gbreeE90

You are not clear at all, haha. Mine didnt come on until about 250 miles and I am catless. But there is always a chance that you will be fine.

2000k+ miles no CEL ever.

I335 · 12-31-2010, 07:00 PM

Thanks for the replies guys - sounds like it's all over the map. I guess I'll just have to wait and see...

I335 · 12-31-2010, 07:01 PM

Hey Penn - your sig says you have catless DPs! And you still don't get a CEL?

Penn999 · 12-31-2010, 08:20 PM

Quote:

Originally Posted by I335

Hey Penn - your sig says you have catless DPs! And you still don't get a CEL?

Correct, I have catless, never had a CEL.
LOL I had 3 CEL with the afe intake only. As soon as I got exhaust and tune, never happened again.

Forcefed3 · 12-31-2010, 08:42 PM

Quote:

Originally Posted by Penn999

Quote:

Originally Posted by gbreeE90

You are not clear at all, haha. Mine didnt come on until about 250 miles and I am catless. But there is always a chance that you will be fine.

2000k miles no CEL ever.

Yeah but you have procede

Penn999 · 12-31-2010, 08:45 PM

Quote:

Originally Posted by gbreeE90

Yeah but you have procede

The Procede still shows and SES light if something goes wrong. You can enable can clear that deletes it right away, its not as if you cant see it and its suppressing it from ever appearing.

clairvoyant · 01-02-2011, 09:21 AM

For the sake of the "sniffer" emission test, is it possible to cut those downpipes and weld new set of cats?
Thank You

Quote:

Originally Posted by Penn999

The Procede still shows and SES light if something goes wrong. You can enable can clear that deletes it right away, its not as if you cant see it and its suppressing it from ever appearing.

Penn999 · 01-02-2011, 09:37 AM

Quote:

Originally Posted by clairvoyant

For the sake of the "sniffer" emission test, is it possible to cut those downpipes and weld new set of cats?
Thank You

Rephrase your question. I dont know what youre asking me. Cut my AR catless dp's? No, I would never or recommend you do that. Just get high flow catted from them.

clairvoyant · 01-02-2011, 11:06 AM

Currently I am running into the same problem (defected cats on high flow catted downpipes).
I am just wondering if I can cut the defected high flow cats and replace them with new high flow cats then weld them back to the downpipes.

Quote:

Originally Posted by Penn999

Rephrase your question. I dont know what youre asking me. Cut my AR catless dp's? No, I would never or recommend you do that. Just get high flow catted from them.

I335 · 01-02-2011, 11:15 AM

Quote:

Originally Posted by clairvoyant

Currently I am running into the same problem (defected cats on high flow catted downpipes).
I am just wondering if I can cut the defected high flow cats and replace them with new high flow cats then weld them back to the downpipes.

I'm sure any good exhaust shop can do the work fairly inexpensively but a good set of HFCs are fairly expensive themselves. Which DPs do you have where the cats are failing and how many miles on them?

Penn999 · 01-02-2011, 11:20 AM

Quote:

Originally Posted by I335

I'm sure any good exhaust shop can do the work fairly inexpensively but a good set of HFCs are fairly expensive themselves. Which DPs do you have where the cats are failing and how many miles on them?

if ur gonna do all that, why not just swap in the stockers for the day of inspection and them swap the modified ones back in after. Seems like a lot less headache to me.

Zasquatch · 01-02-2011, 11:54 AM

Anyone have experience with the CP-E pipes? I'm curious how the spun-metal cats compare to the magnaflows on the AR pipes...

I335 · 01-02-2011, 11:56 AM

Quote:

Originally Posted by Penn999

if ur gonna do all that, why not just swap in the stockers for the day of inspection and them swap the modified ones back in after. Seems like a lot less headache to me.

Not a bad approach, just a lot of work...

Penn999 · 01-02-2011, 12:06 PM

Quote:

Originally Posted by Annino

Anyone have experience with the CP-E pipes? I'm curious how the spun-metal cats compare to the magnaflows on the AR pipes...

Only heard good things with CP-E, they are fairly local to me. Lots of guys around me use their products. We are speaking quality here, I cannot speak on behalf of their performance.

Penn999 · 01-02-2011, 12:09 PM

Quote:

Originally Posted by I335

Not a bad approach, just a lot of work...

Agreed, but hes talkin about taking them off to work on at the shop right? isnt that the same process or is he gonna take the car in have um cut um out with the car on a lift? We are talking totally diff. labor processes

12-31-2010, 05:24 PM	#1
I335 Brigadier General 126 Rep 4,248 Posts Drives: '08 335i Coupe Join Date: Jan 2008 Location: New England iTrader: (11)	No CEL w/AR Catted DPs so far, but... I had my AR catted DPs for 2 weeks now and probably 300 or 400 miles and so far I haven't seen a CEL. Does anyone know if that means I'm in the clear or could the CEL pop up quite a ways down the road still?
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12-31-2010, 05:32 PM	#2
momstmg78 Banned 12 Rep 376 Posts Drives: 335i sedan Join Date: Oct 2010 Location: Turkish's house iTrader: (0)	Your probably fine until the cats go.
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12-31-2010, 05:44 PM	#5
Daya Lieutenant Colonel 203 Rep 1,741 Posts Drives: e92 335 space gray/coral red Join Date: Sep 2006 Location: Chicago iTrader: (1) Garage List 2007 E92 335 [9.66]	I was fine on stock tune with AR catted DP, if you up the boost with a piggyback or flash there is a chance you will get an SES light - nothing that an o2 sim can't fix __________________ GIAC S2 \| Brembo GT BBK 355/345 \| BBS CH-R \| Michelin Pilot Super Sports \| AR Design: DP, S1 Oil Cooler, OCC \| AMS FMIC \| Bastuck Quad Exhaust \| Borla MP \| KW V1 \| Stett: CAI, CP \| Forge DV \| P3 Boost Gauge \| Arkym: Front Lip, Rear Quad Diffuser \| Vorsteiner CSL Trunk \| LUX H8 \| ModMyNav \| MFD M3 Sideskirts \| BMW M-Tech Front/Rear Bumpers, Edition Grills
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12-31-2010, 06:14 PM	#6
scottp999 Brigadier General 136 Rep 4,764 Posts Drives: 4runner SR5 Join Date: Mar 2007 Location: MD iTrader: (2) Garage List 2007 BMW 335 [9.00]	Mine lasted 1 year before the CEL came on. I assume they are right near the line to throw the light (the magnaflow, high flow cat version) and when they age for several months, they cross the line and throw the CEL. I have the procede o2 modifier at 80% and it takes car of the light. I bet next summer the light may come on again and I will have to go from 80% to 70% on the o2 modifier setting.
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12-31-2010, 06:39 PM	#7
Forcefed3 Banned 131 Rep 4,732 Posts Drives: 2008 335i Join Date: May 2010 Location: South iTrader: (2) Garage List 2008 335i [1.00]	You are not clear at all, haha. Mine didnt come on until about 250 miles and I am catless. But there is always a chance that you will be fine.
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12-31-2010, 07:00 PM	#9
I335 Brigadier General 126 Rep 4,248 Posts Drives: '08 335i Coupe Join Date: Jan 2008 Location: New England iTrader: (11)	Thanks for the replies guys - sounds like it's all over the map. I guess I'll just have to wait and see...
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12-31-2010, 07:01 PM	#10
I335 Brigadier General 126 Rep 4,248 Posts Drives: '08 335i Coupe Join Date: Jan 2008 Location: New England iTrader: (11)	Hey Penn - your sig says you have catless DPs! And you still don't get a CEL?
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01-02-2011, 11:54 AM	#19
Zasquatch Captain 36 Rep 708 Posts Drives: '07 BMW 335i Join Date: Sep 2010 Location: CT iTrader: (15) Garage List 2007 BMW 335i [0.00]	Anyone have experience with the CP-E pipes? I'm curious how the spun-metal cats compare to the magnaflows on the AR pipes...
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