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      12-21-2010, 02:42 AM   #1
anerness
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bmw 325i Headers

I have a buddy who is coming to Dallas from Mexico for the holidays and he is bringing his 2009 bmw 325i. He want's to upgrade the headers and maybe cats. He was going to do the whole supersprint system from headers to muffler but changed his mind. Is there any other solution to aftermarket headers then supersprint?
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      12-21-2010, 07:05 AM   #2
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2009 325? Is there a Typo somewhere? They stopped making the 325 after my year; which is 2006.

If its a 325 or 328; you should look at Craven_328's headers he is selling. I bought his muffler and honnestly, I couldnt get a bigger bang for my buck.
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      12-21-2010, 10:18 AM   #3
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Quote:
Originally Posted by MaximusJ View Post
2009 325? Is there a Typo somewhere? They stopped making the 325 after my year; which is 2006.

If its a 325 or 328; you should look at Craven_328's headers he is selling. I bought his muffler and honnestly, I couldnt get a bigger bang for my buck.
in the US they did,
325's and 330's are still sold in other countries, along with a plethora of other engine choices
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      12-21-2010, 12:14 PM   #4
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True that. I saw Dallas and pulled the trigger. Shame on me.

But the point is: The same headers still fits
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      12-21-2010, 02:43 PM   #5
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What other company makes headers for the 325i other then supersprint?

The 2009 uses the same header and front cats/connecting pipes but a different resonator and rear muffler.
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      12-21-2010, 02:45 PM   #6
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I can help you on that if you need it, and can do the midpipes along with a muffler for it. Drop me an email and id be happy to give you some info

- Gavin@mmotorwerks.net
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      12-21-2010, 02:48 PM   #7
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I just did.
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      12-21-2010, 02:54 PM   #8
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Youve got mail
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      12-21-2010, 03:19 PM   #9
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Gavin-
Have there been any improvements made to the headers, or does the the motor mount still require some degree of modification? And have you perfected the O2 sims?
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      12-21-2010, 03:23 PM   #10
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O2 sims are 100%, engine mount ive found to be dependent. In a 328 it needs a mod, on a 325 we got it to clear, 330 havent tried yet.

Either way a slight modification is a small price to pay for 20hp
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      12-21-2010, 07:45 PM   #11
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Hey Craven, how do you keep the man from hassling you for not having a cat?
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      12-21-2010, 07:46 PM   #12
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OBX HEADERS ON EBAY OR CRAVEN CAN YOU HOOK YOU UP WITH A GOOD DEAL WITH 02 sims
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      12-21-2010, 07:47 PM   #13
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Quote:
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Hey Craven, how do you keep the man from hassling you for not having a cat?
I dont need a smog until 2013

im sure a lot of e9x's are the same.
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      12-22-2010, 07:33 AM   #14
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I dont need a smog until 2013

im sure a lot of e9x's are the same.
...and then what?
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      12-22-2010, 11:55 AM   #15
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...and then what?
Take them out. Pass smog. Put them back in.
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      12-22-2010, 04:38 PM   #16
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Quote:
Originally Posted by Craven 328 View Post
Either way a slight modification is a small price to pay for 20hp
Is there a dyno anywhere that proves there is that much of a gain?
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      12-22-2010, 06:25 PM   #17
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Craven I emailed you. Please get back to me.
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      12-23-2010, 11:39 AM   #18
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Quote:
Originally Posted by Craven 328 View Post
O2 sims are 100%, engine mount ive found to be dependent. In a 328 it needs a mod, on a 325 we got it to clear, 330 havent tried yet.

Either way a slight modification is a small price to pay for 20hp
Do they do smog tests in florida? And how much of a gain for a 328i and lastly my car Is cpo, will this void it? If anything can I talk to some one at the dealer
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      12-23-2010, 02:29 PM   #19
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Quote:
Originally Posted by bmwonbrembos View Post
Do they do smog tests in florida? And how much of a gain for a 328i and lastly my car Is cpo, will this void it? If anything can I talk to some one at the dealer
wait you live in florida and don't know if you get tested for smog? In short no, florida does not test for smog. Nor do they do any road worth inspections what-so-ever.
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      12-23-2010, 05:13 PM   #20
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Quote:
Originally Posted by PiZauL View Post
Is there a dyno anywhere that proves there is that much of a gain?


Here you go, this one still had the tune in it, and had to modified after this dyno to compensate for the new hardware, so that low spot isnt there anymore - i just dont have access to the recent dyno's with the changes
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      12-23-2010, 05:15 PM   #21
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Craven I emailed you. Please get back to me.
Emailed
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