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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, Oct-10-2017, 11:10:43 AM   #11
Obioban
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Default Re: Which Exhaust?

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Originally Posted by Good View Post
Update: Can anyone help identify what brand these headers are? Could they possibly SS?

https://imgur.com/a/YRvxt
Not SS.
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Old Thu, Oct-12-2017, 01:06:14 PM   #12
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Default Re: Which Exhaust?

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Originally Posted by JuicyM3 View Post
I also think it's the best sounding, but the tips are too short for CSL diffuser IMO. I still want one though.
Definitely the best sounding exhaust for this car. Headers are also a must to make it not sound like a honda.


The BB exhaust is the only exhaust that sounds good at all RPM ranges. Low RPM it's deep and throaty, high RPM... well, race car
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Old Thu, Oct-12-2017, 01:53:24 PM   #13
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Default Re: Which Exhaust?

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Originally Posted by Obioban View Post
Not SS.
They might be SS V1 or V2 NON stepped headers.

I have the SS NON stepped headers on my car and they have that number plate on them along with groves from the jig which helped to identified the header by Supersprint themselves.
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Old Thu, Oct-12-2017, 02:01:29 PM   #14
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Default Re: Which Exhaust?

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Originally Posted by bmw m3 s50 View Post
They might be SS V1 or V2 NON stepped headers.

I have the SS NON stepped headers on my car and they have that number plate on them along with groves from the jig which helped to identified the header by Supersprint themselves.
Doesn't look like the tubing material SS uses to me?
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Old Thu, Oct-12-2017, 02:50:39 PM   #15
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Default Re: Which Exhaust?

Those look like SS V1 or V2. They are the only ones that weld a serial number plate to them with that exact font. I think the discoloration could be due to some harsh cleaner? Just speculating.
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Old Thu, Oct-12-2017, 03:44:23 PM   #16
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Default Re: Which Exhaust?

OP: do the headers have this on them?

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Old Thu, Oct-12-2017, 03:56:28 PM   #17
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Default Re: Which Exhaust?

They are not v1. MAYBE v2.
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Old Thu, Oct-12-2017, 07:13:00 PM   #18
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Default Re: Which Exhaust?

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Originally Posted by Obioban View Post
OP: do the headers have this on them?

Not all SS headers have the prancing horse and logo etched onto the primary. A lot of them simply have just a plaque with a five-number serial tacked on.
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Old Thu, Oct-12-2017, 07:25:57 PM   #19
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Default Re: Which Exhaust?

Hmm. I've never seen a set without the logo!
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Old Thu, Oct-12-2017, 07:33:14 PM   #20
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Default Re: Which Exhaust?

Hard to say from the pictures posted of the headers, but they are definitely not the Stepped V1 nor the Stepped V2. You can clearly see in the photographs that there is no 'stepping' of pipe size like shown in Obioban's post. This leaves just one other offering that Supersprint makes, the NON-stepped 'Tubolare' header. If I had to guess, I would assume that these are either Supersprint Non-stepped headers or a copy.

Some things that stand out to me:
-As Obioban mentioned, the metal used just does not look like the typical steel used by Supersprint. Especially with the corrosion on these on the collector. Maybe this was an older "earlier" version?
-also there should be a Supersprint logo engraving present. To my knowledge, all their products have this. Ex (SS Stepped V1):
-You likely will also see lines/impressions in the metal from their mandrel bending machine...but likely this is not unique to Supersprint and can be found on other headers perhaps (depending on what was used to bend the pipes).
-The actual collector, and sensor bungs also look different to me (especially the EGT bung location), as do the welds for those items. Ex:


This is more typical of what Supersprint headers look like after they have been heat cycled (not the ceramic coated ones also pictured):



The only thing that reminds me of Supersprint is the serial number plate (which I think corresponds to the jig used).
For ex (SSV1):



The actual primary piping looks consistent with the Non-stepped Supersprint headers (keeping in mind that this a very highly copied design):
Ex (Non-stepped V1): http://www.m3forum.net/m3forum/showthread.php?t=466317
*also note that while these look nearly the same, the sensor bungs are slightly different as is the serial number is also different.
Ex: (Non-Stepped V2)
http://www.m3forum.net/m3forum/showthread.php?t=393979
http://www.m3forum.net/m3forum/showthread.php?t=542230

I'd say that these are either an older set of Supersprint Non-Stepped headers or a copy. The serial number doesn't match up to any of the numbers I have found on other non-stepped Supersprint headers.

here is a good thread asking essentially the same question on a similar looking set of headers: http://www.m3forum.net/m3forum/showthread.php?t=465735

If it interests you, I'd call a representative of Supersprint or Supersprint directly to get a definitive answer. Supersprint non-stepped and Euro headers are far and away the most copied designs.
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Last edited by Dr M3an M3; Thu, Oct-12-2017 at 07:36:38 PM.
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Discussing Which Exhaust? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)