ar design TRUE 3" Downpipes!

ar design · 07-22-2010, 11:31 AM

Ah, that was a set of catted DPs that passed here in CO.

BrokenVert · 07-23-2010, 07:42 PM

Quote:

Originally Posted by ar design

Ah, that was a set of catted DPs that passed here in CO.

Yes but did it pass because of the o2 sensor fix? Ie if somebody sticks a sniffer up my exhaust pipe will I pass or fail?

Tochenzo · 07-23-2010, 08:50 PM

I don't think there is an o2 sensor "fix" on the catted DPs since the o2 sensors should be functional and working since they are plugged into the cats.

What is the difference between these cats and the ones CP-E offers on their catted 3" DP's? I'm in the market and am trying to decide which way to go, I trust both AR Design and CP-E as I have used their products before, but I haven't seen anyone post results or reviews on either of their Catted DP's.

BrokenVert · 07-24-2010, 09:19 AM

^there are cats on the market that are just to reduce the smell and don't actually pass emmisions tests. Magnaflow sells them and being as the cats in the ar pipes are magnaflow it's a question worth asking

ar design · 07-30-2010, 12:35 PM

Das Ein · 07-30-2010, 01:13 PM

Quote:

Originally Posted by BrokenVert

^there are cats on the market that are just to reduce the smell and don't actually pass emmisions tests. Magnaflow sells them and being as the cats in the ar pipes are magnaflow it's a question worth asking

So can we get an answer?

AR...hello?

ar design · 07-30-2010, 01:24 PM

I passed emissions here in Colorado with flying colors with our catted downpipes. Emissions output was near identical to OEM.

Das Ein · 07-30-2010, 01:33 PM

Quote:

Originally Posted by ar design

I passed emissions here in Colorado with flying colors with our catted downpipes. Emissions output was near identical to OEM.

And no check engine light with the catted downpipes?

ar design · 08-03-2010, 11:47 AM

There was no DP fix installed on car.

BrokenVert · 08-03-2010, 12:25 PM

Quote:

Originally Posted by ar design

There was no DP fix installed on car.

So then you just put the factory o2 sensors right onto the catted dps?

ar design · 08-17-2010, 06:02 AM

Quote:

Originally Posted by BrokenVert

So then you just put the factory o2 sensors right onto the catted dps?

Correct. No DP Fix at all was needed to pass here in Colorado, and I had zero CEL issues with my 2007, pre 29.2 car.

IZAGLO · 08-21-2010, 01:24 PM

nice DP's, real nice!!! Great build

ar design · 09-21-2010, 08:28 AM

ar design · 10-25-2010, 05:08 PM

ar design · 11-02-2010, 10:22 AM

Diego@Lutzperformance · 11-02-2010, 10:37 AM

Best Downpipes in the market...nuff said!

thez99 · 11-03-2010, 02:50 AM

Any idea about the post 29.2 135's with the catted DP's being CEL free yada yada? I see its said "checking" or somethin on the site about that for a long time now, any word? Bought my 135 in March of 2010, build date I believe was late 09-early 2010, so not sure...Id like to get these, but not if theres a chance of CEL's or emissions failure, etc.

Ser1es · 11-03-2010, 04:29 PM

Any idea of what the difference in restriction is between the catted ones and the uncatted ones?

thez99 · 11-04-2010, 12:57 AM

Quote:

Originally Posted by Ser1es

Any idea of what the difference in restriction is between the catted ones and the uncatted ones?

Shouldnt be much, I had a pair of catted APR DP's on my GTI and they still made somethin like 12hp to the wheels n more tq with the tune.

ar design · 11-04-2010, 11:31 AM

Quote:

Originally Posted by Ser1es

Any idea of what the difference in restriction is between the catted ones and the uncatted ones?

Around 7-10hp.

Quote:

Originally Posted by thez99

Any idea about the post 29.2 135's with the catted DP's being CEL free yada yada? I see its said "checking" or somethin on the site about that for a long time now, any word? Bought my 135 in March of 2010, build date I believe was late 09-early 2010, so not sure...Id like to get these, but not if theres a chance of CEL's or emissions failure, etc.

It really depends on the car and software. Some have no issues, some require a DP FIX. Bmw has made the software MUCH more sensitive.

thez99 · 11-04-2010, 12:54 PM

Quote:

Originally Posted by ar design

Around 7-10hp.

It really depends on the car and software. Some have no issues, some require a DP FIX. Bmw has made the software MUCH more sensitive.

Would be interested in some concrete info here on that cuz this pretty much stands in my way of getting these in the future. I dont wanna mess with anything in the ECU box for sure. Catted downpipes, shouldnt be an issue? Anyway to tell what software would set off a CEL?

07-22-2010, 11:31 AM	#23
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	Ah, that was a set of catted DPs that passed here in CO.
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07-23-2010, 08:50 PM	#25
Tochenzo Second Lieutenant 13 Rep 249 Posts Drives: 2009 135i Join Date: Dec 2008 Location: VA iTrader: (5) Garage List 2009 135i [0.00] 1998 328i [10.00]	I don't think there is an o2 sensor "fix" on the catted DPs since the o2 sensors should be functional and working since they are plugged into the cats. What is the difference between these cats and the ones CP-E offers on their catted 3" DP's? I'm in the market and am trying to decide which way to go, I trust both AR Design and CP-E as I have used their products before, but I haven't seen anyone post results or reviews on either of their Catted DP's. __________________ National Capital Chapter BMW CCA #367673
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07-24-2010, 09:19 AM	#26
BrokenVert Resident Kerbalnaut 477 Rep 10,703 Posts Drives: Topless Brute/Hybrid Boogaloo Join Date: Apr 2009 Location: Fahrvergnügen/NY iTrader: (0)	^there are cats on the market that are just to reduce the smell and don't actually pass emmisions tests. Magnaflow sells them and being as the cats in the ar pipes are magnaflow it's a question worth asking __________________
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07-30-2010, 12:35 PM	#27
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)
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07-30-2010, 01:24 PM	#29
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	I passed emissions here in Colorado with flying colors with our catted downpipes. Emissions output was near identical to OEM.
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08-03-2010, 11:47 AM	#31
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	There was no DP fix installed on car. __________________ -Critter
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08-21-2010, 01:24 PM	#34
IZAGLO Mbira 30 Rep 1,011 Posts Drives: Sedonna Red 09 135i SOLD Join Date: Jan 2010 Location: Garage cleaning Brake Dust iTrader: (3)	nice DP's, real nice!!! Great build
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09-21-2010, 08:28 AM	#35
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	__________________ -Critter
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10-25-2010, 05:08 PM	#36
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	__________________ -Critter
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11-02-2010, 10:22 AM	#37
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	__________________ -Critter
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11-02-2010, 10:37 AM	#38
Diego@Lutzperformance 52 Rep 1,034 Posts Drives: bmw Join Date: Aug 2009 Location: Tampa/Lutz iTrader: (3)	Best Downpipes in the market...nuff said!
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11-03-2010, 02:50 AM	#39
thez99 Colonel 151 Rep 2,757 Posts Drives: 2017 Audi A4 Join Date: Nov 2009 Location: Arden, NC iTrader: (5) Garage List 2013 BMW 135i [0.00]	Any idea about the post 29.2 135's with the catted DP's being CEL free yada yada? I see its said "checking" or somethin on the site about that for a long time now, any word? Bought my 135 in March of 2010, build date I believe was late 09-early 2010, so not sure...Id like to get these, but not if theres a chance of CEL's or emissions failure, etc.
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11-03-2010, 04:29 PM	#40
Ser1es First Lieutenant 51 Rep 359 Posts Drives: AW 135i ///M Sport Join Date: Oct 2010 Location: Long Island NY iTrader: (0)	Any idea of what the difference in restriction is between the catted ones and the uncatted ones? __________________ "Do I need to sell my girlfriend to afford this thing? Because I will...." (Brey335i)
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