You can change the plugs and coils if you want. You can also buy a brand new valve cover.
I did my plugs as the coils don't seem to have an issue on my car.
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'16 M4 bone stock
'13 335ix Msport BM3 stage1 - MAD FMI - FTP CP - Bilstein B4 (SOLD)
'85 635csi M30 turbo race car (SOLD)
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