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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 01-08-2013, 04:57 PM   #1
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Join Date: Nov 2012
Location: Scotland
Posts: 6
My Ride: E46 328ci
Compatible Exhaust Manifolds?

Hi Guys,

Quick question.

99' E46 328Ci M52TUB28

The manifold downpipes (exhaust) have 3 bolts on the flanges and are staggered.

Now, I just got a full stainless Direnza cat back system, the flanges have 2 bolts on them. I was aware of this upon purchase.
I can easily get the flanges cut, staggered and adapted to 3 bolt, but it would be nice to get a stainless manifold and I'm wondering if anyone knows if there is any compatible manifolds that will fit from another year/model (M3/E39/Z3 etc etc) with unstaggered downpipes with only 2 bolts on the flange so I can do a direct fit....

I have tried to make this as clear as possible, however if I have not explained anything properly, please let me know!!

Thanks in advance
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Old 01-08-2013, 05:44 PM   #2
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Join Date: Mar 2007
Location: the barnyard
Posts: 2,458
My Ride: '79 Massey Ferguson
Off the top of my head, that sounds like an exhaust designed for M54 cars. I don't know if headers for the M54 will fit the head of an M52, but you might search around...there's a huge kpeng thread from years ago on the ebay ones.
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Old 01-08-2013, 06:03 PM   #3
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Join Date: Nov 2012
Location: Scotland
Posts: 6
My Ride: E46 328ci
Thanks for your reply, very much appreciated!

I know the rest of the system has all the bends in the right places, but it's just the manifold downpipes that are causing me a headache for a direct fitment. I'm sure there must be something, or a combination that will work. At least I have something to go on and look into tho, which is why I find this forum so fascinating!

KUDOS to you Icoleman!! I'll have a hunt for the thread. Cheers

If anyone has a brain wave please don't be shy, subsequently the same goes if you're reading this before bed, dream about and have a dream wave

Awesome bunch on here, always! I will post any findings on here too.
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