Exhaust Manifold Replacement

C

coxy8oi

Member
Hi all,

Looking for some help and advice. The Lambda sensor in my exhaust manifold has ceased in place and is also faulty. I’m thinking of putting a decat manifold on as replacement. However struggling to find the right part.

Currently found this:

https://www.gravityperformance.co.uk/product/exhaust/exhaust-manifolds/exhaust-manifold-bmw-3-series-e46-316i-318i-1-8-2-0-16v-01-06/?utm_source=Google%20Shopping&utm_campaign=Exhausts&utm_medium=cpc&utm_term=9749&tm=tt&ap=gads&aaid=adaJWnczxSSDP&gad_source=1&gbraid=0AAAAACNdbqB0AdkWpuf0Ykk2xwy5a0nn0&gclid=Cj0KCQjwn9y1BhC2ARIsAG5IY-5QYj50dZd4L2AgmNFD_5KYf1RmwAJSM-aASuX5ofsX7EB6qXWe1mAaAvMnEALw_wcB

Which is listed for a 3 series. Does anyone know if this will fit a Z4?

Thanks in advance
 
Thanks for the reply. Will give that a go!
I’m still interested in the decat anyway (more performance is always nice) would you happen to know if the 3 series manifold is the same?

I actually did a full engine swap a few weeks back to a 3 series N46, had some subtle differences (intake manifold, wiring loom, and the engine mounts. but other than was a pretty straight forward swap. Unfortunately though didn’t come with the exhaust mani.
 
Be aware that one of the MOT requirements is to make sure that all mandatory emissions devices are still in place. Sooner or later they will start clamping down on missing CAT's.
 
Rockhopper said:
Be aware that one of the MOT requirements is to make sure that all mandatory emissions devices are still in place. Sooner or later they will start clamping down on missing CAT's.
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A friend of mine does my MOT’s he actually suggested the decat pipe so I’m not too worried about that.
That’s if I can even find one anyway 😂
 
j3nks79 said:
Would fit the engine but not sure if it would get in the way of the steering rack etc.
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As Jenks says the problem is getting around the steering rack . Loads of threads on this including on this forum for the N52 engine . I had to get mine custom made as no aftermarket exhaust manifolds available that fit for RHD .
 
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