downpipes catless or catted whp difference?

john boxter · 09-10-2009, 05:45 PM

hey guys anyone know what the difference in power i would be getting by going catless over catted? and if i keep my stock exhaust will there be a smell of gas if i go catless downpipes? please let me know ofcourse dynos would be the best but probably nothing comparing that out there thanks guys!

john boxter · 09-10-2009, 09:07 PM

no idea huh can i still expect 20 whp gains from catted downpipes?

Mike@N54Tuning.com · 09-10-2009, 09:23 PM

I think people might be encouraging you to SEARCH as its been covered many times. I would say catted will give you 50% of the gain of catted pipes.

Mike

ar design · 09-10-2009, 09:48 PM

We just did some back to back runs on a B5 S4 - setup uses same cats - and we lost 7whp and zero torque with the HFCs. Not the same car, but will give you an idea.

Craig@SupremePower · 09-10-2009, 09:50 PM

AR Design catless DP's FTW!!

ar design · 09-10-2009, 09:50 PM

Quote:

Originally Posted by Craig@SupremePower

AR Design catless DP's FTW!!

Who are you?

Craig@SupremePower · 09-10-2009, 09:52 PM

so nasty...

Quote:

Originally Posted by ar design

Who are you?

Mike@N54Tuning.com · 09-10-2009, 09:52 PM

Is this an ar design DPs love-in

Mike

Craig@SupremePower · 09-10-2009, 09:53 PM

I'm swappin out to Riss or VK's.... pffftttt!!

Craig@SupremePower · 09-10-2009, 10:50 PM

joking of course before i make andrew cry...

Alex@AKMotorwerk · 09-10-2009, 10:51 PM

Quote:

Originally Posted by Craig@SupremePower

joking of course before i make andrew cry...

too late

Craig@SupremePower · 09-10-2009, 10:53 PM

17 texts since i posted that jokingly....

Quote:

Originally Posted by nj323ci

too late

Alex@AKMotorwerk · 09-10-2009, 10:54 PM

Quote:

Originally Posted by Craig@SupremePower

17 texts since i posted that jokingly....

BWHAHAAHAHA

and i got 20 calls to swap out to RR/VK asap... u have alot of pull on this forum craig

ar design · 09-11-2009, 12:28 AM

You guys crack me up

Not all of us are on the forums 24x7 Craig.... we have these cool things called lives

Craig@SupremePower · 09-11-2009, 12:44 AM

ahhhh there you are, I guess he took you out for dinner... my bad!!

Quote:

Originally Posted by ar design

You guys crack me up

Not all of us are on the forums 24x7 Craig.... we have these cool things called lives

ar design · 09-11-2009, 12:47 AM

Quote:

Originally Posted by Craig@SupremePower

ahhhh there you are, I guess he took you out for dinner... my bad!!

LOL........

Craig@SupremePower · 09-11-2009, 12:49 AM

Enough PW'in up this man's thread.... bottomline you need DP's give Andrew a holler great quality parts and customer service!!

john boxter · 09-11-2009, 10:34 AM

i just dont know how much power i would be loosing if i ran catted and i dont know what people usually complain about with downpipes

ar design · 09-11-2009, 10:52 AM

Quote:

Originally Posted by ar design

We just did some back to back runs on a B5 S4 - setup uses same cats - and we lost 7whp and zero torque with the HFCs. Not the same car, but will give you an idea.

Bueller?

john boxter · 09-11-2009, 11:01 AM

i dont understand what uses some cats means? like in the exhaust in the downpipes where and do you think those numbers should be the same with the 335?

ar design · 09-11-2009, 11:03 AM

Same cats, not some cats. Meaning the power losses on the 335i should be fairly similar.

john boxter · 09-11-2009, 11:04 AM

oh haha thanks sorry i misread that my last question is i have the jb3 if instal catted downpipes and intake can i still run higher maps or are those designed for catless downpipes?

09-10-2009, 05:45 PM	#1
john boxter Captain 35 Rep 763 Posts Drives: 2008 e93 Join Date: Sep 2009 Location: long Island New York iTrader: (3)	downpipes catless or catted whp difference? hey guys anyone know what the difference in power i would be getting by going catless over catted? and if i keep my stock exhaust will there be a smell of gas if i go catless downpipes? please let me know ofcourse dynos would be the best but probably nothing comparing that out there thanks guys!
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09-10-2009, 09:07 PM	#2
john boxter Captain 35 Rep 763 Posts Drives: 2008 e93 Join Date: Sep 2009 Location: long Island New York iTrader: (3)	no idea huh can i still expect 20 whp gains from catted downpipes?
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09-10-2009, 09:23 PM	#3
Mike@N54Tuning.com Joint Chiefs of Staff 4908 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	I think people might be encouraging you to SEARCH as its been covered many times. I would say catted will give you 50% of the gain of catted pipes. Mike
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09-10-2009, 09:48 PM	#4
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	We just did some back to back runs on a B5 S4 - setup uses same cats - and we lost 7whp and zero torque with the HFCs. Not the same car, but will give you an idea. __________________ -Critter
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09-10-2009, 09:50 PM	#5
Craig@SupremePower G.O.A.T.! 1000 Rep 74,998 Posts Drives: '18 GMC Yukon XL Join Date: Mar 2008 Location: New Jersey iTrader: (14)	AR Design catless DP's FTW!!
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09-10-2009, 09:52 PM	#8
Mike@N54Tuning.com Joint Chiefs of Staff 4908 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Is this an ar design DPs love-in Mike
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09-10-2009, 09:53 PM	#9
Craig@SupremePower G.O.A.T.! 1000 Rep 74,998 Posts Drives: '18 GMC Yukon XL Join Date: Mar 2008 Location: New Jersey iTrader: (14)	I'm swappin out to Riss or VK's.... pffftttt!!
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09-10-2009, 10:50 PM	#10
Craig@SupremePower G.O.A.T.! 1000 Rep 74,998 Posts Drives: '18 GMC Yukon XL Join Date: Mar 2008 Location: New Jersey iTrader: (14)	joking of course before i make andrew cry...
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09-11-2009, 12:28 AM	#14
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	You guys crack me up Not all of us are on the forums 24x7 Craig.... we have these cool things called lives __________________ -Critter
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09-11-2009, 12:49 AM	#17
Craig@SupremePower G.O.A.T.! 1000 Rep 74,998 Posts Drives: '18 GMC Yukon XL Join Date: Mar 2008 Location: New Jersey iTrader: (14)	Enough PW'in up this man's thread.... bottomline you need DP's give Andrew a holler great quality parts and customer service!!
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09-11-2009, 10:34 AM	#18
john boxter Captain 35 Rep 763 Posts Drives: 2008 e93 Join Date: Sep 2009 Location: long Island New York iTrader: (3)	i just dont know how much power i would be loosing if i ran catted and i dont know what people usually complain about with downpipes
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09-11-2009, 11:01 AM	#20
john boxter Captain 35 Rep 763 Posts Drives: 2008 e93 Join Date: Sep 2009 Location: long Island New York iTrader: (3)	i dont understand what uses some cats means? like in the exhaust in the downpipes where and do you think those numbers should be the same with the 335?
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09-11-2009, 11:03 AM	#21
ar design 295 Rep 4,408 Posts Drives: 04 M3 Join Date: Jan 2008 Location: Denver, CO iTrader: (9)	Same cats, not some cats. Meaning the power losses on the 335i should be fairly similar. __________________ -Critter
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09-11-2009, 11:04 AM	#22
john boxter Captain 35 Rep 763 Posts Drives: 2008 e93 Join Date: Sep 2009 Location: long Island New York iTrader: (3)	oh haha thanks sorry i misread that my last question is i have the jb3 if instal catted downpipes and intake can i still run higher maps or are those designed for catless downpipes?
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