Brullen Headers & CEL: Questions

DrBoy01 · 12-15-2002, 08:46 PM

I've been very impressed by the reviews I've read on the Brullen/iON Performance header/cat combo. So impressed, in fact, that I've pretty much decided to get these despite my incredibly low budget.

However, I've been worried about getting a CEL. My car is a daily driver, and I can't afford to be having any sort of mechanical problems at all, since it is driven by some other family members from time to time.

Is it possible to buy the Brullen header system without a high-flow cat? Would that reduce the chances of getting a CEL, but would that also reduce the possible power gains? What kinds of CEL fixes are around for the particular code that I'd throw with the headers installed, and can they only be fixed by Brullen themselves?

Yes, I know the Brullen headers have been talked about before, and I did do searches, and I did not find answers to my questions.

Thanks for your time~

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obyone · 12-15-2002, 09:38 PM

Why open up your exhaust only to choke it at the cat?

I have a friend who's running Borlas with a stock cat, and a STI cat back. He aslo has a Ganzflo intake, bored out T/B, upgraded clutch and light flywheel.

On the other hand I have a Cobb intake, and Full MRT exhaust. (high flow cat)

He and I run almost identical times in the quarter mile but I gain on him moderatly quickly in 4th gear.....

and he has a fly wheel while I'm still running the stock ship anchor on mine.

We're guessing that the stock cat is really holding him back.

GTBGUY · 12-15-2002, 10:25 PM

DrBoy01 - The iON/Brullen headers all come with a CEL fix. So when you install it, you can install the CEL fix for them as well.

A CEL could be triggered by many things: ie: loose gas cap, bad gas etc.

A hi-flow cat may not be the reason why the CEL is triggered. Ultimately, if you get a CEL, you'll need to pull the code to determine what is really the cause. IIRC it's the "cat. inefficiency code" is P04220

There's quite a few guys running this header system on the MY00-up w/o CEL problems. DeusExMachina has it on his MY02 RS w/o problems.

http://forums.nasioc.com/forums/show...hreadid=177462

DrBoy01 · 12-16-2002, 02:47 PM

GTBGUY: You have PM

obyone · 12-16-2002, 04:07 PM

I'm running a MRT header back system plus the $20 Pony express MIL eliminator, and I have no CEL problems.

I have an 00 RS.

DrBoy01 · 12-16-2002, 06:17 PM

Answered my own question via search

Edit: Dur

12-15-2002, 08:46 PM	#1
DrBoy01 Scooby Specialist Member#: 20444 Join Date: Jun 2002 Chapter/Region: MAIC Location: Wilmington, DE\|Berkeley Vehicle: 2006 Outback 2.5 XT Garnet Red Pearl 5MT	Brullen Headers & CEL: Questions I've been very impressed by the reviews I've read on the Brullen/iON Performance header/cat combo. So impressed, in fact, that I've pretty much decided to get these despite my incredibly low budget. However, I've been worried about getting a CEL. My car is a daily driver, and I can't afford to be having any sort of mechanical problems at all, since it is driven by some other family members from time to time. Is it possible to buy the Brullen header system without a high-flow cat? Would that reduce the chances of getting a CEL, but would that also reduce the possible power gains? What kinds of CEL fixes are around for the particular code that I'd throw with the headers installed, and can they only be fixed by Brullen themselves? Yes, I know the Brullen headers have been talked about before, and I did do searches, and I did not find answers to my questions. Thanks for your time~ * Registered users of the site do not see these ads.

12-15-2002, 10:25 PM	#3
GTBGUY Scooby Specialist Member#: 2003 Join Date: Aug 2000 Location: Calgary, Alberta, Canada Vehicle: '99 BGP Legacy GT '98 QS Legacy L (auto)	DrBoy01 - The iON/Brullen headers all come with a CEL fix. So when you install it, you can install the CEL fix for them as well. A CEL could be triggered by many things: ie: loose gas cap, bad gas etc. A hi-flow cat may not be the reason why the CEL is triggered. Ultimately, if you get a CEL, you'll need to pull the code to determine what is really the cause. IIRC it's the "cat. inefficiency code" is P04220 There's quite a few guys running this header system on the MY00-up w/o CEL problems. DeusExMachina has it on his MY02 RS w/o problems. http://forums.nasioc.com/forums/show...hreadid=177462 Last edited by GTBGUY; 12-15-2002 at 11:04 PM.

12-16-2002, 06:17 PM	#6
DrBoy01 Scooby Specialist Member#: 20444 Join Date: Jun 2002 Chapter/Region: MAIC Location: Wilmington, DE\|Berkeley Vehicle: 2006 Outback 2.5 XT Garnet Red Pearl 5MT	Answered my own question via search Edit: Dur Last edited by DrBoy01; 12-16-2002 at 06:23 PM.

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12-15-2002, 09:38 PM	#2
obyone Scooby Specialist Member#: 16523 Join Date: Mar 2002 Chapter/Region: MWSOC Location: Inbetween Hesco's and T-walls Vehicle: JDM Maxxpro	Why open up your exhaust only to choke it at the cat? I have a friend who's running Borlas with a stock cat, and a STI cat back. He aslo has a Ganzflo intake, bored out T/B, upgraded clutch and light flywheel. On the other hand I have a Cobb intake, and Full MRT exhaust. (high flow cat) He and I run almost identical times in the quarter mile but I gain on him moderatly quickly in 4th gear..... and he has a fly wheel while I'm still running the stock ship anchor on mine. We're guessing that the stock cat is really holding him back.

12-16-2002, 02:47 PM	#4
DrBoy01 Scooby Specialist Member#: 20444 Join Date: Jun 2002 Chapter/Region: MAIC Location: Wilmington, DE\|Berkeley Vehicle: 2006 Outback 2.5 XT Garnet Red Pearl 5MT	GTBGUY: You have PM

12-16-2002, 04:07 PM	#5
obyone Scooby Specialist Member#: 16523 Join Date: Mar 2002 Chapter/Region: MWSOC Location: Inbetween Hesco's and T-walls Vehicle: JDM Maxxpro	I'm running a MRT header back system plus the $20 Pony express MIL eliminator, and I have no CEL problems. I have an 00 RS.