header power gains? - BMW Forum

Teh Prof · 02-09-2006, 08:57 AM

Anybody know what kind of gains you can expect from a header upgrade? This is assuming the setup listed below in my sig.

Furious · 02-09-2006, 12:14 PM

not sure, what headers are you looking at? most places that advertise headers also advertise the header gains.

SpeedInfusion · 02-09-2006, 01:21 PM

ur looking at from 3-7 hp max gain...

rej487 · 02-09-2006, 01:57 PM

that's it? 3 -7 hp?

r u sure!?!

dutchbmw · 02-09-2006, 02:03 PM

Yep, it's not that much. I saw once some dyno tests with and without the upgraded header but like Speed says you will only gain a few hp......

Tochenzo · 02-09-2006, 02:14 PM

u'll get a nice sound though

Cruzin 323is · 02-09-2006, 04:12 PM

thats one thing that BMW did when they made the e36.. is a restrictive exhaust system... includeing the headers...

as many are saying, 3-7 hp... plus another 5-10 with the cat back... your looking at a total of around 15 hp...

mdc · 02-12-2006, 06:12 AM

so even if i just change my headers and retain my old stock exhaust, it can give me that 3 - 7 hp gain? and will it give an aggressive sound?

e36 316i does not have oxygen sensors right? if im not mistaken, m43 engine? so there should be no complications with changing them to headers without sensors?

btw, if ever, wat design should improve my acceleration? 4-2-1 or 4-1 headers?

BImmerN2B · 02-12-2006, 10:45 AM

for noticeable power gains you should have a V8 car like a Mustang, cars like the Bimmer and ricers don't gain much even with upgrades.

SpeedInfusion · 02-12-2006, 01:49 PM

Quote:

Originally Posted by BImmerN2B

for noticeable power gains you should have a V8 car like a Mustang, cars like the Bimmer and ricers don't gain much even with upgrades.

not nec. tru...go FI, every mod will give u lots of HP

frank de jonge · 02-12-2006, 04:03 PM

Vinnie got 18hp max added to his 328i

He installed a full M3 exhaust with euro M3 headers.

That thing is madness :O:O even without the M50 intake.

I ordered the M3 exhaust too.

Sound will be a bit less but much deeper

And the power gains are very good

Furious · 02-12-2006, 10:17 PM

Quote:

Originally Posted by frank de jonge

Vinnie got 18hp max added to his 328i

He installed a full M3 exhaust with euro M3 headers.

That thing is madness :O:O even without the M50 intake.

I ordered the M3 exhaust too.

Sound will be a bit less but much deeper

And the power gains are very good

can you post the dyno numbers? im always interested in checking out mods numbers when people dyno their car. also do you mean 18 hp? or 18rwhp?

speaking of rwhp (rear wheel horse power) most header companies only post or claim their crank hp not their wheel horsepower.

SpeedInfusion · 02-13-2006, 01:34 AM

Quote:

Originally Posted by frank de jonge

Vinnie got 18hp max added to his 328i

He installed a full M3 exhaust with euro M3 headers.

That thing is madness :O:O even without the M50 intake.

I ordered the M3 exhaust too.

Sound will be a bit less but much deeper

And the power gains are very good

u forgot to mention his whole system starting from the exhaust manifold all the way to the muffler is off of a euro m3...

///M Power · 02-13-2006, 02:25 AM

Quote:

Originally Posted by Cruzin 323is

thats one thing that BMW did when they made the e36.. is a restrictive exhaust system... includeing the headers...

as many are saying, 3-7 hp... plus another 5-10 with the cat back... your looking at a total of around 15 hp...

No catback will give you more than maybe, MAYBE a 5.x whp gain.

vwk · 02-13-2006, 03:35 AM

I don't have dyno's, a dyno run costs 60 dollars over here... so no :P

I thought Frank knows a link somewhere on BMW Syndikat.

But yes, it's a very nice mod.
@speedinfusion: Frank said a full M3 exhaust with M3 headers

Still loving it