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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 07-20-2005, 08:45 AM
GreenBeem93 GreenBeem93 is offline
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Location: Pittsburgh, PA
 
Join Date: Jul 2005
Posts: 19
Mein Auto: 1993 325is
Whats your Opinion on Headers?

What is the cost benefit of them.....

Would I get louder/deeper sound?
How about HP/TRQ improvements?

Whats your experience with them, good/bad

thanks
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  #2  
Old 07-21-2005, 06:13 AM
maxreco maxreco is offline
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Location: Cape Cod
 
Join Date: Apr 2005
Posts: 59
Mein Auto: 1994 325ic
Quote:
Originally Posted by GreenBeem93
What is the cost benefit of them.....

Would I get louder/deeper sound?
How about HP/TRQ improvements?

Whats your experience with them, good/bad

thanks
There is no easy answer to you question without placing this modification into a priority list of others, with some identified goal/objective at the end. If you're just after sound, go with a cat-back replacement.

Headers should not be done without a ECU and intake modification as well, IMO. The HP/Torque "gain" can only be determined by a valid dyno before/after. Remember that advertised claims are just that. I'm not saying you won't see a change, but if you don't put it in the context of engine beathing or aspiration you will just be pissing $ away.

MR
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  #3  
Old 07-24-2005, 02:03 PM
FierySphere FierySphere is offline
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Location: Redwood City, CA
 
Join Date: Jul 2004
Posts: 92
Mein Auto: E36 325is
So far the general *documented* info shows little to no difference between the OBD1 cast iron headers, ODB2 stainless steel tubular headers, the Jet-Hot shorty headers or the knock-off of the Jet-Hots. (of course if you just changed to one of these, I'm sure you *swear* they are better, right)

The SuperSprint headers do make some power, but require the SuperSprint resonator (not CA legal), or modifying to use the stock cats. The KromerKraft are better, but pretty much race-only (and pricey).
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  #4  
Old 07-25-2005, 04:30 AM
GreenBeem93 GreenBeem93 is offline
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Location: Pittsburgh, PA
 
Join Date: Jul 2005
Posts: 19
Mein Auto: 1993 325is
Quote:
Originally Posted by maxreco
There is no easy answer to you question without placing this modification into a priority list of others, with some identified goal/objective at the end. If you're just after sound, go with a cat-back replacement.

Headers should not be done without a ECU and intake modification as well, IMO. The HP/Torque "gain" can only be determined by a valid dyno before/after. Remember that advertised claims are just that. I'm not saying you won't see a change, but if you don't put it in the context of engine beathing or aspiration you will just be pissing $ away.

MR

Thanks fellas...

Just wondering if it was worth it....
I'm generally looking for horsepower, already have cat back, intake, ecu chipped, and asc delete
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  #5  
Old 07-25-2005, 11:56 AM
e36bmw328 e36bmw328 is offline
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Location: Southern Cali.
 
Join Date: Feb 2005
Posts: 65
Mein Auto: '98 328IA
Excellent post, i was just about to add this myself. i think a full exhaust system will bring out the full potential of the headers, but with the this (exhaust and headers) wouldn't you need to apply the same to the intale system for it's full potential? good thing i've got the AFE cold air, i'm just looking where i could find a ported and polished intake manifold..
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  #6  
Old 08-10-2005, 06:39 AM
GreenBeem93 GreenBeem93 is offline
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Location: Pittsburgh, PA
 
Join Date: Jul 2005
Posts: 19
Mein Auto: 1993 325is
Just got the OBD2 M3 headers for my 325is. Need to plug up the holes for the O2 sensor and for the hole that attaches to the block. Just wondering if anyone has done this before, if you have, please share your experience. How do they fit?
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