Supersprint Headers with my Dinan S/C M3 -97

[Tobias]

Hello there!

I'm going over to the US this summer, and I'm thinking of buying Supersprint headers for my Dinan M3. Today I have a Vortech V2 blower with Dinan's Freeflow Exhaust and CAI. The exhaustsystem is otherwise stock. So, what will I need? Supersprint Headers ofcourse.... A connecting pipe of somekind to connect to the cat? Is there any idea of removing to stock cats and install a racing cat or a resonator? However I read that a resonator Isn't leagal and that it doesn't make that big difference. Or maybe it does on a S/C M3? And I also read that I have to drill holes to install the O2 sensors. I hope somebody has done a install like this, and can share the info with me

Hope you can help me!

Best Regards

/Toby

[Bad Bimr]

Originally Posted by Tobias

Hello there!

I'm going over to the US this summer, and I'm thinking of buying Supersprint headers for my Dinan M3. Today I have a Vortech V2 blower with Dinan's Freeflow Exhaust and CAI. The exhaustsystem is otherwise stock. So, what will I need? Supersprint Headers ofcourse.... A connecting pipe of somekind to connect to the cat? Is there any idea of removing to stock cats and install a racing cat or a resonator? However I read that a resonator Isn't leagal and that it doesn't make that big difference. Or maybe it does on a S/C M3? And I also read that I have to drill holes to install the O2 sensors. I hope somebody has done a install like this, and can share the info with me

Hope you can help me!

Best Regards

/Toby

Buy a Used E-36 M3 Euro Exhaust. It flows as good/better than SS and can be had for cheap over there. An option would be to run a Euro SS cat-back with the Euro or mod the Dinan to work with the bigger Euro pipes.

BP

[Tobias]

Hmmm, so a original Euro M3 exhaustsystem has better flow then the SS Headers for the US M3? Will the Euro M3 headers fit on the US engine. If that's the case, then I can just as well buy SS Headers that are for the Euro M3

Which euro exhaust are you reffering to? 3.0 or the 3.2? Sure it's quite easy to find some used Euro Headers for a good price here in Sweden, but if there's a lot of trouble then it's not worth it.

/Toby

[Bad Bimr]

Originally Posted by Tobias

Hmmm, so a original Euro M3 exhaustsystem has better flow then the SS Headers for the US M3? Will the Euro M3 headers fit on the US engine. If that's the case, then I can just as well buy SS Headers that are for the Euro M3

Which euro exhaust are you reffering to? 3.0 or the 3.2? Sure it's quite easy to find some used Euro Headers for a good price here in Sweden, but if there's a lot of trouble then it's not worth it.

/Toby

The STOCK Euro E36 M3 headers will EASILY outflow US SS M3 Headers. Also they match/outflow the Euro E36 M3 SS headers. SS claims ZERO HP/TWQ when you upgrade from Euro headers to their Euro headers. Basically the BMW Euro headers and Euro SS headers are EQUALS. Buy the ones that you will find cheaper. Yes they will BOLT right up to your stock US M3, I am running Euro headers on my OBDI 3.2 engine.

I had mine Jet-Hot coated. Check them out here

Now remember if you run the Euro stuff you need either a Euro Cat section or the Euro SS mid section (no cats). Also you will need a Euro cat-back (or other make or Euro cat back, SS for one) or you Dinan cat back must be modified to fit to the larger Euro pipes.

As far as OBDI or OBDII. I am using OBDI headers and they have bungs for O2 sensors at each collector (2). I am not sure but I think OBDI and OBDII Euro headers are the same.

Bill P

[driftz31]

or you could just buy the supersprint euro m3 race headers. PM me i can give you more info if you'd like.

[driftz31]

the us spec m3 race headers are 2x50mm, the euro m3 race headers are 2x60mm.

[Bad Bimr]

Originally Posted by driftz31

the us spec m3 race headers are 2x50mm, the euro m3 race headers are 2x60mm.

The Euro has to be larger then 50mm. I am looking at the Stock US and Euro as I type. The Eurom is HUGE compared to the US. If I am not mistaken the US is ~48mm. Trust me the Euro looks at least 10mm larger then the US.

SS does make a 60mm race version but it is only cat-back. They also make a "race" cat section but not sure if 60mm.

The best flowing headers are KK. They used to be $2500 but now can be had for $1400. These suckers are HUGE.

BP

[driftz31]

all of the us spec race components are 2x50mm including the headers. The euro spec components are all 2x60mm. And yes, they do have euro headers (the race version)

[Bad Bimr]

Originally Posted by driftz31

all of the us spec race components are 2x50mm including the headers. The euro spec components are all 2x60mm. And yes, they do have euro headers (the race version)

The E36 M3 Euro Race and Euro Street SS kits are the same size. Both are 60mm. The stock E36 M3 OEM Euro is also 60mm. The stock US E36 M3 is less then 50mm. Not even concerned with US Spec Super Sprint stuff as it will not flow like the Euro stuff, so why even bother when you can get the Euro stuff.

As you can see in the links below the Super Sprint componets (part numbers) for OBDI and OBDII are 100% the same. Also notice that in the race systems only the mid section and muffler (better flowing & much louder) are different. The headers are 100% the same.

SUPER SPRINT EURO BMW E36 M3 3.0I - RACING SYSTEM
SUPER SPRINT EURO BMW E36 M3 3.2I - RACING SYSTEM
SUPER SPRINT EURO BMW E36 M3 3.0I - STREET SYSTEM
SUPER SPRINT EURO BMW E36 M3 3.2I - STREET SYSTEM

My main point is this. The thread starter lives in Europe. In Europe you can easily find a Stock OEM Euro E36 M3 headers or complete exhaust system for real cheap. This will bolt on your US spec M3 no problem. It will make the same/better HP/TQ then the more expensive Super Sprint. Now if you can find used Super Sprint system at a good price, go for that. Both flow about the same, get the system that will cost less. Usually it's the used OEM that costs less.

Hope this helps.

Bill P