Anyone using a Cobb catted DP?

DrRobert · 02-03-2015, 09:27 PM

What sort of gains did you see from it (and with what tune)?
How much louder is it than the stock DP?
Any increased smell?
Have you passed an emissions inspection with it (and in what state)?

Thanks,
Robert

CantCatchMe · 02-04-2015, 02:17 PM

I'm interested too possibly by summer time when I install my tune. I've had catted Downpipe that I bought aftermarket. The sound is perfect imo, not any drone whatsoever but who knows with the Cobb catted DP. And on top of that, there's no smell.

D's Bimmer · 02-04-2015, 07:20 PM

Ditto, I am interested in hearing more. Anyone from Cobb on here chime in?

335m · 02-05-2015, 09:25 AM

Subbed, I am going to the Cobb first Thursday meet at the HQ in Austin tonight so I will try to see if I can find a rep and ask.

Normally I stay away from Cobb bolt ons as they are pretty overpriced, but a DP that would pass emissions might be worth it.

Johnny Boost · 02-05-2015, 09:39 AM

The catted downpipes do not produce the same gains as catless and are double the price. Also Cobb has made it clear on their website that you will still get a CEL light with these.

mike5809 · 02-05-2015, 09:45 AM

I think someone posted a Wagner Catted DP review and indicated they were not getting any codes - if you are just worried about passing emissions.

Also I saw a good deal on a new CP-E catted downpipe in the for sale area a few weeks back - not sure if its still for sale or would pass emissions either... just an FYI.

Johnny Boost · 02-05-2015, 10:25 AM

Quote:

Originally Posted by mike5809

I think someone posted a Wagner Catted DP review and indicated they were not getting any codes - if you are just worried about passing emissions.

Also I saw a good deal on a new CP-E catted downpipe in the for sale area a few weeks back - not sure if its still for sale or would pass emissions either... just an FYI.

Ya there is no CEL if you have a tune installed but if you remove the tune then the light will come on. This is the same case as the catless downpipe.

mike@x-ph.com · 02-05-2015, 02:42 PM

The problem with catted DP is that it is a matter of time before cats fails and it starts producing an engine light.

DrRobert · 02-05-2015, 03:13 PM

Thanks for the replies

Quote:

Originally Posted by mike5809

I think someone posted a Wagner Catted DP review and indicated they were not getting any codes - if you are just worried about passing emissions.

Also I saw a good deal on a new CP-E catted downpipe in the for sale area a few weeks back - not sure if its still for sale or would pass emissions either... just an FYI.

Yes but he also said the wagner DP didnt fit right and made his exhaust tips tilt, and that the customer service from wagner was crappy.

Quote:

The problem with catted DP is that it is a matter of time before cats fails and it starts producing an engine light.

That sucks. Is that the case with all catted DPs? The brands I'm aware of are Cobb, AR, CPE and Wagner. I'm open to any of them.

Quote:

The catted downpipes do not produce the same gains as catless and are double the price. Also Cobb has made it clear on their website that you will still get a CEL light with these.

That sucks too. Thing is I can't deal with the noise and the smell of a catless DP. Was hoping to get some modest gains from a catted without the smell and with a tolerable amount of noise, but between all of this and the emissions test issues I'm wondering if I should keep my stock DP and confine my mods to the upstream side of the DP.

JETmn · 02-05-2015, 04:28 PM

Have you thought about putting a catless DP in and running high flow cats where the X-drives have them or even getting Xdrive mid pipes? Should be much less restriction down stream. I have heard gains are minimal from removing them. Won't help with a CEL, but would with smell/noise.

DrRobert · 02-05-2015, 04:35 PM

Quote:

Originally Posted by JETmn

Have you thought about putting a catless DP in and running high flow cats where the X-drives have them or even getting Xdrive mid pipes? Should be much less restriction down stream. I have heard gains are minimal from removing them. Won't help with a CEL, but would with smell/noise.

Nope, haven't thought of that. Wonder if it would pass a CA emissions test (kinda doubt it, but don't know). Could probably program off a CEL w/ Cobb, but then would put OEM tune back on before taking it to dealer, and CEL would come back on. Car has 45K on it, only 5K left on warranty but it is CPO and has 100K extended drivetrain warranty.

335m · 02-06-2015, 09:19 AM

Was at Cobb HQ last night and their Catted DPs are for "offroad use only."

DrRobert · 02-06-2015, 10:24 AM

Quote:

Originally Posted by 335m

Was at Cobb HQ last night and their Catted DPs are for "offroad use only."

Thanks for asking them about it. They say that on their website too, along with the warning about the CEL. I think they're well aware that people use things on street cars, and that they're just covering their behind with statements like that. Did they say anything else about it, i.e. any answers to the questions in my OP?

335m · 02-06-2015, 11:03 AM

They had an n55 335i that was pretty much my exact car there with full Cobb bolt ons.

1. What sort of gains did you see from it (and with what tune)?

A little more restrictive than catless was the answer

2. How much louder is it than the stock DP?

It was in-between the stock DP and my VRSF Catless DP (he had Cobb exhaust but that didn't make a difference on cold start and low revs)

3. Any increased smell?

It smelled stronger than stock but not bad at all

4. Have you passed an emissions inspection with it (and in what state)?

Wouldn't give me a straight answer.

DrRobert · 02-06-2015, 11:08 AM

Quote:

Originally Posted by 335m

They had an n55 335i that was pretty much my exact car there with full Cobb bolt ons.

1. What sort of gains did you see from it (and with what tune)?

A little more restrictive than catless was the answer

2. How much louder is it than the stock DP?

It was in-between the stock DP and my VRSF Catless DP (he had Cobb exhaust but that didn't make a difference on cold start and low revs)

3. Any increased smell?

It smelled stronger than stock but not bad at all

4. Have you passed an emissions inspection with it (and in what state)?

Wouldn't give me a straight answer.

Thank you very much - that is helpful!

335m · 02-06-2015, 11:11 AM

Quote:

Originally Posted by DrRobert

Thank you very much - that is helpful!

No problem, I highly recommend the VRSF DP though

I know that Cali restrictions can be rough but there are tons of members running them over there even on n55 I am sure all your worries could be addressed before you make your decision. Just have to ask the right people.

DrRobert · 02-06-2015, 11:21 AM

Quote:

Originally Posted by 335m

No problem, I highly recommend the VRSF DP though

I know that Cali restrictions can be rough but there are tons of members running them over there even on n55 I am sure all your worries could be addressed before you make your decision. Just have to ask the right people.

Yes, my indy shop says there is a way to pass emissions tests, but it sounds like a bit of a hassle. Plus I'm sure my wife would make me take a catless DP off as soon as she heard and smelled it!

335m · 02-06-2015, 11:22 AM

Quote:

Originally Posted by DrRobert

Yes, my indy shop says there is a way to pass emissions tests, but it sounds like a bit of a hassle. Plus I'm sure my wife would make me take a catless DP off as soon as she heard and smelled it!

You should find a local member with your car who has catless, I don't really notice the smell at all and I drive with my windows down in Texas all the time haha. I still have my secondary cats though.

DrRobert · 02-06-2015, 11:28 AM

Quote:

Originally Posted by 335m

You should find a local member with your car who has catless, I don't really notice the smell at all and I drive with my windows down in Texas all the time haha. I still have my secondary cats though.

Good idea, will see about that. I'm pretty sure my car doesn't have secondary cats though.

335m · 02-06-2015, 11:35 AM

Quote:

Originally Posted by DrRobert

Good idea, will see about that. I'm pretty sure my car doesn't have secondary cats though.

Only way to know for sure is get up under and look.

EDIT: I may be completely wrong about n55 having secondary cats, looks like only xdrives have the catted midpipe in n55.

DrRobert · 02-06-2015, 11:39 AM

Quote:

Originally Posted by 335m

Only way to know for sure is get up under and look.

This thread has a 2011 e90 335xi that makes me think you might have them:
http://www.e90post.com/forums/showthread.php?p=12186556

2011 N55 335xi sedan has them, pretty sure the RWD sedan doesn't.

CantCatchMe · 04-09-2015, 10:59 AM

I have an AR 4" catted DP brand new for sale and only $620 shipped. They're sold for $900 on lots of websites. PM me if interested.

02-03-2015, 09:27 PM	#1
DrRobert Normal Person 148 Rep 862 Posts Drives: 2011 E90 335i Join Date: May 2014 Location: paradise iTrader: (0) Garage List 2011 E90 335i [0.00]	Anyone using a Cobb catted DP? What sort of gains did you see from it (and with what tune)? How much louder is it than the stock DP? Any increased smell? Have you passed an emissions inspection with it (and in what state)? Thanks, Robert
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02-04-2015, 02:17 PM	#2
CantCatchMe Lieutenant Colonel 340 Rep 1,744 Posts Drives: 2012 335i xdrive msport(E92) Join Date: Aug 2014 Location: West Bloomfield, MI iTrader: (2)	I'm interested too possibly by summer time when I install my tune. I've had catted Downpipe that I bought aftermarket. The sound is perfect imo, not any drone whatsoever but who knows with the Cobb catted DP. And on top of that, there's no smell.
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02-04-2015, 07:20 PM	#3
D's Bimmer Major 235 Rep 1,343 Posts Drives: 2016 340 Xi Join Date: Nov 2011 Location: Toronto iTrader: (1)	Ditto, I am interested in hearing more. Anyone from Cobb on here chime in?
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02-05-2015, 09:25 AM	#4
335m Major 123 Rep 1,166 Posts Drives: 08 e92 M3 Join Date: Jun 2014 Location: Austin Texas iTrader: (1)	Subbed, I am going to the Cobb first Thursday meet at the HQ in Austin tonight so I will try to see if I can find a rep and ask. Normally I stay away from Cobb bolt ons as they are pretty overpriced, but a DP that would pass emissions might be worth it. __________________ 2008 e92 M3: Gintani Sport w/ Topspeed Catless X-Pipe, KW-V3
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02-05-2015, 09:39 AM	#5
Johnny Boost Colonel 324 Rep 2,014 Posts Drives: '21 M850i GC Join Date: May 2013 Location: TBD iTrader: (0)	The catted downpipes do not produce the same gains as catless and are double the price. Also Cobb has made it clear on their website that you will still get a CEL light with these. __________________ WedgePerformance E40 MHD \| Performance Exhaust Mod \| BMS DP \| Vibrant 1790 \| BMS Intake \| VRSF CP \| xHP Stage 3 Michelin PSS \| M3 Control Arms LUX v4 LEDs \| Shadowline Grills \| Lip Spoiler
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02-05-2015, 09:45 AM	#6
mike5809 Major 131 Rep 1,086 Posts Drives: '11 335i M-Sport [LeMans Blue] Join Date: May 2011 Location: York, PA iTrader: (7) Garage List 2011 BMW 335i M-Spo ... [9.66]	I think someone posted a Wagner Catted DP review and indicated they were not getting any codes - if you are just worried about passing emissions. Also I saw a good deal on a new CP-E catted downpipe in the for sale area a few weeks back - not sure if its still for sale or would pass emissions either... just an FYI. __________________ '11 335i M-Sport xDrive Coupe [LMB] COBB V3 & PTF Tune \| E45 \|4in BERK DP \| VRSF 5in FMIC \| BMS Intake \| ER CP \| Exotics Tuning CF Lip \| CF Diffuser \| Eibach Springs \| Bilstein Shocks '07 BMW 335i Coupe & BMW Z4 3.0i - Gone
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02-05-2015, 02:42 PM	#8
mike@x-ph.com BimmerPost Supporting Vendor 24190 Rep 190,805 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	The problem with catted DP is that it is a matter of time before cats fails and it starts producing an engine light. __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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02-05-2015, 04:28 PM	#10
JETmn Lieutenant Colonel 245 Rep 1,595 Posts Drives: 2011 335i xDrive Msport Join Date: Apr 2013 Location: Orlando iTrader: (0) Garage List 2011 335Xi [0.00]	Have you thought about putting a catless DP in and running high flow cats where the X-drives have them or even getting Xdrive mid pipes? Should be much less restriction down stream. I have heard gains are minimal from removing them. Won't help with a CEL, but would with smell/noise.
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02-06-2015, 09:19 AM	#12
335m Major 123 Rep 1,166 Posts Drives: 08 e92 M3 Join Date: Jun 2014 Location: Austin Texas iTrader: (1)	Was at Cobb HQ last night and their Catted DPs are for "offroad use only." __________________ 2008 e92 M3: Gintani Sport w/ Topspeed Catless X-Pipe, KW-V3
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02-06-2015, 11:03 AM	#14
335m Major 123 Rep 1,166 Posts Drives: 08 e92 M3 Join Date: Jun 2014 Location: Austin Texas iTrader: (1)	They had an n55 335i that was pretty much my exact car there with full Cobb bolt ons. 1. What sort of gains did you see from it (and with what tune)? A little more restrictive than catless was the answer 2. How much louder is it than the stock DP? It was in-between the stock DP and my VRSF Catless DP (he had Cobb exhaust but that didn't make a difference on cold start and low revs) 3. Any increased smell? It smelled stronger than stock but not bad at all 4. Have you passed an emissions inspection with it (and in what state)? Wouldn't give me a straight answer. __________________ 2008 e92 M3: Gintani Sport w/ Topspeed Catless X-Pipe, KW-V3
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04-09-2015, 10:59 AM	#22
CantCatchMe Lieutenant Colonel 340 Rep 1,744 Posts Drives: 2012 335i xdrive msport(E92) Join Date: Aug 2014 Location: West Bloomfield, MI iTrader: (2)	I have an AR 4" catted DP brand new for sale and only $620 shipped. They're sold for $900 on lots of websites. PM me if interested.
	Appreciate 0 Quote