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Retrofit OEM subwoofers?

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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SteveSmith
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Retrofit OEM subwoofers?

Post by SteveSmith » Wed May 23, 2018 11:25 pm

Hi all, is this possible or is the whole rear panel very different?
28i M Sport - Alpine White / Canberra Beige, 19" M359’s, H&R’s / Eibachs, BMS Stage 1 - 271bhp, Front Splitter, CF Rear Lip, Alcantara Steering Wheel and Brembo 4 pots

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Z4monster
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Retrofit OEM subwoofers?

Post by Z4monster » Mon May 28, 2018 8:00 am

I don't think the rear panel is much different apart from the two speaker grilles cut into it. However, removing the panel to gain access involves stripping a lot of the rear trim including the roll over hoops and all the top trim around there.

I considered it on a previous Z4 but then just placed a sub in the boot area on the back of the firewall which helped. Not the best solution but easy to do.
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