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Discussion Starter · #1 ·
Hi guys!
Just bought a 320i touring (b22) Auto as a daily.
Transmission is making some weird noises…it’s all the excuse I need really to swap in a 6 speed.
The GS6-37BZ is the obvious choice. What I’m confused about is between 2 variants. I have a chance to get a good deal on a GS6-37BZ THEA from a Z4 petrol m54.
I realise the THEG is from the e46, but what difference is there?
I will put in a b30 swap down the track to justify the swap.
I’ve searched but can’t find an answer here.
Any help is appreciated, guys.
 

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2001 BMW 330ci
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I've been trying to find an answer for this myself as well because I'm doing a manual swap on my e46, 01 330ci. I went ahead and bought the GS6-37BZ-THEA because my uncle's friend (mechanic) told me the transmission should bolt directly up to the car so i went ahead and bought one from junkyard (all i could find).

I haven't started the swap yet but I'm currently am searching for other parts. I'm curious before i even continue, did you find an answer yet?
 

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