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Coil Packs

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Gingerlomax
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Joined: Tue Sep 13, 2022 9:26 am

Coil Packs

Post by Gingerlomax » Fri Jan 26, 2024 12:20 pm

Hi All

Has anyone (B21) upgraded the coils with something like the link below?? They claim to have tested it on a 35i with gains across the rev range so interested on any actual feedback.

https://www.rdmperformance.co.uk/produc ... -b58-coils

Thanks
2010 Black E89 35i

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B21
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Joined: Tue Oct 05, 2021 7:15 pm
Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia

Coil Packs

Post by B21 » Fri Jan 26, 2024 1:52 pm

There are few different versions of this idea..fitting B58 coils to N54s..

I used these..

https://www.mlperformance.co.uk/product ... 5i-335i-z4

I think for OTS tunes / stock I don’t think they offer much if any benefit over a brand new set of stock coils and plugs.

They may offer an advantage with higher boost pressures associated with uprated turbos..

That’s coming from someone who tried fresh stock coils (NGK) and the Nexsys kit.

But don’t let that stop you buying them !
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is :thumbsup:

Gingerlomax
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Posts: 93
Joined: Tue Sep 13, 2022 9:26 am

Coil Packs

Post by Gingerlomax » Fri Jan 26, 2024 2:15 pm

Thanks for that B.. It wont as upgraded Turbos ae on my list. :)
2010 Black E89 35i

mcbutler
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Location: Plymouth

Coil Packs

Post by mcbutler » Sun Jan 28, 2024 11:52 am

Gingerlomax wrote: Fri Jan 26, 2024 12:20 pm Hi All

Has anyone (B21) upgraded the coils with something like the link below?? They claim to have tested it on a 35i with gains across the rev range so interested on any actual feedback.

https://www.rdmperformance.co.uk/produc ... -b58-coils

Thanks
I talked to a pro tuner ref this upgrade and he basically stated that unless you are on a VERY high output tune they simply have zero benefit....
Mark
Plymouth
E89
35i
Carmine Red
Black leather

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