Any 2.8s with headers?

SoundOfSpeed · 08-19-2008, 07:05 PM

So I threw on some S52 headers on my dual vanos 2.8 a little while ago and I didn't get the results im lookin for.

Car is running rich to the point where it's throwing codes and the ecu can't cut back on any more fuel.

I'm on a stock tune.

Anyone else run into problems when putting in some headers on a 2.8?

bmw_chuzo · 08-20-2008, 11:53 PM

I didn't had any problems. no codes, errors.
my motor was the m52tu

KriTiKaL AspecT · 08-21-2008, 09:13 PM

Sure your o2's are in the corrct banks? Or any good?

Snik · 08-21-2008, 09:18 PM

so hold on, S52 headers fit on M52TU with no issues, and gains?

Activ3 · 08-22-2008, 06:25 AM

Check your o2 wiring/connections, and if anything have your mech. clear the adaptations.

The OBDII S52 headers work fine on the M52tu/M54, but you need to use the downpipe midsection from the e36, unless you're having a custom exhaust built. You'll also have to extend the o2 wiring if using the e36 exhaust (which I'm assuming the OP did).

Snik · 08-22-2008, 10:27 AM

Quote:

Originally Posted by Activ3

Check your o2 wiring/connections, and if anything have your mech. clear the adaptations.

The OBDII S52 headers work fine on the M52tu/M54, but you need to use the downpipe midsection from the e36, unless you're having a custom exhaust built. You'll also have to extend the o2 wiring if using the e36 exhaust (which I'm assuming the OP did).

and there are measurable gains from this?

Activ3 · 08-22-2008, 12:14 PM

IMO it's not worth it seeing as you can get a set of eBay headers for ~$150. Before headers were available on eBay, these would've been a cheaper alternative to the brand name headers for our cars.

Snik · 08-22-2008, 12:24 PM

ah..... but without an aftermarket ECU, how can u run ebay headers with no CEL?

SoundOfSpeed · 08-22-2008, 11:26 PM

o2 sensors are brand new and wiring is fine. Exhaust is custom from S52 headers back. I've recoded the DME and adaptations ahve been reset. Been trying to figure this out for a little while.

What did you guys do about the cats? I installed a single 2.5" CARB legal Magnaflow cat.

TheRiddle · 10-07-2008, 01:22 PM

here I am..

bought them on ebay a long ago...

no cats,just the 2nd resonator and a remus muffler....

sounds great, revs better..

and i felt the gain since the 1st km... they said 20hp, for me are 15...

and in 2 years of abuse the light engine light pop out only after a trip of 500km on the highway...

240sxplan · 10-19-2008, 10:03 PM

hmm.. no engine light huh.?? for me too I'm thinking putting in the headers from ebay and deleting the cat and resonater ..

If there is no codes .. I' d be looking for these upgrades soon..

Bimmer Dude Xi · 10-19-2008, 10:59 PM

Quote:

Originally Posted by 240sxplan

hmm.. no engine light huh.?? for me too I'm thinking putting in the headers from ebay and deleting the cat and resonater ..

If there is no codes .. I' d be looking for these upgrades soon..

Replacing the headers will give you codes

TheRiddle · 10-20-2008, 06:26 AM

Quote:

Originally Posted by Bimmer Dude Xi

Replacing the headers will give you codes

If it happens is given by the different ECU settings (US cars/EURO cars)

BartenderPlease · 10-19-2008, 11:35 PM

Quote:

Originally Posted by SoundOfSpeed

So I threw on some S52 headers on my dual vanos 2.8 a little while ago and I didn't get the results im lookin for.

Car is running rich to the point where it's throwing codes and the ecu can't cut back on any more fuel.

I'm on a stock tune.

Anyone else run into problems when putting in some headers on a 2.8?

There will be a dyno graph of before (stock M52TU - 'cept for a CAI) and after with the only mod being the eBay headers. I'll keep you informed.

Snik · 10-20-2008, 01:54 AM

Are there any gains to be had from a S52 head? Or cams maybe?

08-19-2008, 07:05 PM	#1
SoundOfSpeed Registered User Join Date: Jul 2004 Location: Los Angeles Posts: 136 My Ride: Clownshoe View My Garage	Any 2.8s with headers? So I threw on some S52 headers on my dual vanos 2.8 a little while ago and I didn't get the results im lookin for. Car is running rich to the point where it's throwing codes and the ecu can't cut back on any more fuel. I'm on a stock tune. Anyone else run into problems when putting in some headers on a 2.8? __________________ \|\|\|

08-20-2008, 11:53 PM	#2
bmw_chuzo Registered User Join Date: Feb 2005 Location: Republic of Panama Posts: 553 My Ride: HPF M3 View My Garage	I didn't had any problems. no codes, errors. my motor was the m52tu __________________

08-21-2008, 09:13 PM	#3
KriTiKaL AspecT Registered User Join Date: Feb 2008 Location: (under my car) Tyler, TX Posts: 482 My Ride: 2001 AW 330Ci View My Garage	Sure your o2's are in the corrct banks? Or any good? __________________ Headers - KW V2 - Hotchkis Sways - 55w 6000k HID - 35w 6000k HID fogs EVO 3 SSK mit ein DSSR - EE Tails - Meyle LCA, FCAB, & RTAB w/ Rogue Limiters - M3 Mounts .... -Paul BSME ASME & SAE Member

08-22-2008, 06:25 AM	#5
Activ3 Registered User Join Date: Feb 2005 Location: Orlando/Miami Posts: 6,353 My Ride: gets DRIVEN. View My Garage	Check your o2 wiring/connections, and if anything have your mech. clear the adaptations. The OBDII S52 headers work fine on the M52tu/M54, but you need to use the downpipe midsection from the e36, unless you're having a custom exhaust built. You'll also have to extend the o2 wiring if using the e36 exhaust (which I'm assuming the OP did). __________________ -David www.e46nonm.com \| My Videos 2000 328i - Custom Turbo tuned by AA www.activeautowerke.com \| www.precision-sport.com

08-22-2008, 12:14 PM	#7
Activ3 Registered User Join Date: Feb 2005 Location: Orlando/Miami Posts: 6,353 My Ride: gets DRIVEN. View My Garage	IMO it's not worth it seeing as you can get a set of eBay headers for ~$150. Before headers were available on eBay, these would've been a cheaper alternative to the brand name headers for our cars. __________________ -David www.e46nonm.com \| My Videos 2000 328i - Custom Turbo tuned by AA www.activeautowerke.com \| www.precision-sport.com

08-22-2008, 11:26 PM	#9
SoundOfSpeed Registered User Join Date: Jul 2004 Location: Los Angeles Posts: 136 My Ride: Clownshoe View My Garage	o2 sensors are brand new and wiring is fine. Exhaust is custom from S52 headers back. I've recoded the DME and adaptations ahve been reset. Been trying to figure this out for a little while. What did you guys do about the cats? I installed a single 2.5" CARB legal Magnaflow cat. __________________ \|\|\|

10-07-2008, 01:22 PM	#10
TheRiddle Sofa-king-what Join Date: Oct 2002 Location: IT-UK-US Posts: 1,138 My Ride: 2.8-M52TU'ed Vert View My Garage	here I am.. bought them on ebay a long ago... no cats,just the 2nd resonator and a remus muffler.... sounds great, revs better.. and i felt the gain since the 1st km... they said 20hp, for me are 15... and in 2 years of abuse the light engine light pop out only after a trip of 500km on the highway... __________________

10-19-2008, 10:03 PM	#11
240sxplan Registered User Join Date: Nov 2006 Location: Saint paul Posts: 56 My Ride: 328I View My Garage	hmm.. no engine light huh.?? for me too I'm thinking putting in the headers from ebay and deleting the cat and resonater .. If there is no codes .. I' d be looking for these upgrades soon..

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