What do you think about this idea??

katsbimmer · 07-06-2006, 03:48 PM

Ok the cats are in the exhaust manifolds, so what do you think if they were replaced with headers..but leave the rest of the system stock??? Would there be any power gains?? And how would it effect the sound?? ( both in and outside) the car??

ward · 07-06-2006, 09:15 PM

D-Rock · 08-05-2006, 05:54 PM

Your talking about gutting your cats. You gain mad hp thats what i will be doing.

D-Rock · 08-05-2006, 05:55 PM

Yes and the sound is VERY nice.

aarnt · 08-07-2006, 03:33 AM

Erm... what is the "cat"?

Kamando · 08-07-2006, 05:16 AM

Quote:

Originally Posted by aarnt

Erm... what is the "cat"?

catalytic converter

Raley · 08-07-2006, 06:35 AM

i think changing to headers would bring you up to euro spec power unless they are tuned headers, then you're set for some serious gains.

better yet, just get rid of all your cats. the smell is intoxicating!

aarnt · 08-07-2006, 06:43 AM

Quote:

Originally Posted by Kamando

catalytic converter

Ok thanx, not that good with abreviations

///Matt · 08-14-2006, 01:52 PM

MAD check engine light time, if you do that. But hey, you'll be faster and more fun... you'll probably get WAY horrible fuel economy. I'd recommend NOT doing it, just based on the amount of crap it COULD make not work right... these engines are DEFINITELY not your dad's chevy 350, if you know what I mean.

Asiann · 08-14-2006, 02:40 PM

I don't think its a good idea. Check and see if Random Technologies are coming out with a CAT for the E90.

D-Rock · 08-14-2006, 08:15 PM

Quote:

Originally Posted by Asiann

I don't think its a good idea. Check and see if Random Technologies are coming out with a CAT for the E90.

Why i have done it to my old e46 and so has every one else .

MonacoBimm · 08-14-2006, 09:21 PM

How do you that

D-Rock · 08-14-2006, 09:26 PM

You dont unless you know how to weld

07-06-2006, 03:48 PM	#1
katsbimmer Captain 71 Rep 858 Posts Drives: 2010 e90 328i Msport Join Date: Apr 2006 Location: Pt. St. Lucie,fl. iTrader: (5) Garage List 2010 328i LCI E90 [10.00] 2006 325i [0.00]	What do you think about this idea?? Ok the cats are in the exhaust manifolds, so what do you think if they were replaced with headers..but leave the rest of the system stock??? Would there be any power gains?? And how would it effect the sound?? ( both in and outside) the car?? __________________ AW 2010 E90 LCI
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07-06-2006, 09:15 PM	#2
ward Major General 155 Rep 6,158 Posts Drives: F Join Date: May 2005 Location: T iTrader: (0)
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08-05-2006, 05:54 PM	#3
D-Rock Lieutenant Colonel 188 Rep 1,855 Posts Drives: 325i Join Date: Jul 2005 Location: miami iTrader: (2)	Your talking about gutting your cats. You gain mad hp thats what i will be doing. __________________
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08-05-2006, 05:55 PM	#4
D-Rock Lieutenant Colonel 188 Rep 1,855 Posts Drives: 325i Join Date: Jul 2005 Location: miami iTrader: (2)	Yes and the sound is VERY nice. __________________
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08-07-2006, 03:33 AM	#5
aarnt Private 1 Rep 72 Posts Drives: BMW E90 320i Join Date: Jun 2005 Location: Greece iTrader: (0)	Erm... what is the "cat"?
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08-07-2006, 06:35 AM	#7
Raley Enlisted Member 0 Rep 30 Posts Drives: E90 Join Date: May 2006 Location: Singapore iTrader: (0)	i think changing to headers would bring you up to euro spec power unless they are tuned headers, then you're set for some serious gains. better yet, just get rid of all your cats. the smell is intoxicating!
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08-14-2006, 01:52 PM	#9
///Matt United States Marine 318 Rep 2,748 Posts Drives: 2007 Dodge Ram 1500 Join Date: Jul 2006 Location: Los Angeles iTrader: (8) Garage List 2006 330i [0.00]	MAD check engine light time, if you do that. But hey, you'll be faster and more fun... you'll probably get WAY horrible fuel economy. I'd recommend NOT doing it, just based on the amount of crap it COULD make not work right... these engines are DEFINITELY not your dad's chevy 350, if you know what I mean.
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08-14-2006, 02:40 PM	#10
Asiann Got Seoul? 116 Rep 2,862 Posts Drives: 2012 535i MSport Join Date: Dec 2005 Location: Honolulu iTrader: (0) Garage List 2012 BMW 535i [0.00] 2008 750Li [0.00] 2006 BMW [0.00]	I don't think its a good idea. Check and see if Random Technologies are coming out with a CAT for the E90. __________________ Can you say Alooooha? [SIGPIC][/SIGPIC]
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08-14-2006, 09:21 PM	#12
MonacoBimm Banned 44 Rep 1,859 Posts Drives: Sapp. Black 330i(2nd e90) Join Date: Jun 2006 Location: Panama City, Panama iTrader: (1)	How do you that
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08-14-2006, 09:26 PM	#13
D-Rock Lieutenant Colonel 188 Rep 1,855 Posts Drives: 325i Join Date: Jul 2005 Location: miami iTrader: (2)	You dont unless you know how to weld __________________
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