Z4 E85 Upgrade Ideas

[Wookster78]

Hi all,

I have a 2004 Z4 E85 that I have been doing a few upgrades in over the years and covered most of the suggestions in this forum but with the lockdown I have found myself tinkering again but starting to run out of ideas for any upgrades. Was wondering if anyone has some ideas on some cool upgrades they have done and I could have a go at?

I have the M54 3.0 variant roadster

Here is what I have done so far:
VANOS refurb
CDV delete
DISA valve refurb
Rocker cover gasket replacement
Filter housing gasket replacement
Water pump replacement
Radiator replacement
Plugs and coil pack replacent
New front wishbones and all bushes replaced
Rear diff upgrade to 3.23 ratio (replaced diff bushing and flex disk at same time)
Backbox delete and twin pipe mod
Drilled out old exhaust studs and replaced with through bolts so removing exhaust is easier in the future
Replaced PCV
Updated to clear lights all round
Retrofitted power wing mirrors
Retrofitted heated and electric sport seats in red
Added passenger air bag bypass switch
Retrofitted cup holders in dash vents
Replaced both window regulators
Relocated roof motor to the boot
Painted brake callipers red as well as struts behind grills
Replaced front grills to black gloss
Refurbed all alloys
Cruise control retrofit
Installed drilled and cross vented front disks
Added RM Design rear boot fin and bumper splitter
Installed adjustable Coilovers and reduced ride height

Reasonable list but I am sure there are some more ideas out there, pic attached to show how she is looking so far (before I changed out the interior for the red)!

 

[Smartbear]

Hi, you list an upgrade to power windows in your list, did it have wind up windows previously? I’d not heard of that before :?
Rob

 

[Wookster78]

Oops sorry I meant upgraded to power wing mirrors sorry :headbang:

 

[saj77]

Fit a GapTech roof module.

http://www.gap-tech.co.uk/rchp.html

It’s how BMW should have had the roof operate from the factory

 

[Wookster78]

Thanks will look into that option, have already coded it so that the roof comes down when I hold down the unlock button on the remote key fob but one touch looks like a cool option

 

[saj77]

Thanks will look into that option, have already coded it so that the roof comes down when I hold down the unlock button on the remote key fob but one touch looks like a cool option

That’s the main reason I fitted it - the one touch operation.

It used to annoy me having to hold the button!

First world problems :rofl:

 

[CHIMV8]

Love this simple roof upgrade

 

[Wookster78]

Yeah now you have given me an alternative it’s going to annoy me too :rofl:

 

[saj77]

Yeah now you have given me an alternative it’s going to annoy me too :rofl:

If you do get one, I’d recommend soldering the connections as I have read a few threads where people have had issues with the ‘scotch lock’ connectors that are provided.

 

[Wookster78]

Thanks for the tip

 

[Jfgoldfish]

Painted brake callipers red as well as struts behind grills

Have you painted the bracing behind the front grills? Would you happen to have a pic for us?

 

[mr wilks]

Maybe go for larger exhaust tip
It's a fair list already accomplished but if non M sport seats maybe look at changing seats?

 

[Wookster78]

Yeah not sure I could go much larger :rofl:

 

[Wookster78]

Painted braces behind the grills

 

[Wookster78]

Maybe go for larger exhaust tip
It's a fair list already accomplished but if non M sport seats maybe look at changing seats?

Yeah they are the m sport dream red ones, look great!

 

[Wookster78]

Rear tips for full effect

 

[Jfgoldfish]

Painted braces behind the grills

Thanks for that
I might go ahead and do that myself. The paint has chipped away on one of them leaving a flakey galvanised finish. Red would look much better.

 

[Wookster78]

That’s exactly why I did it had started to oxidise and looked terrible

 

[Wookster78]

Has anyone out there done a remap on their 3.0 m54 engine? Realise the gains are minimal and possibly not even noticeable but has anyone done it and could report back how it feels after the upgrade?

 

[2-Pugs]

Thought about fitting facelift heater controls? Look a bit more up to date and have a nicer feel and sound to them.

By the way thanks for your recent post on the power fold mirrors retrofit thread. I’m just about to do the same on my 04 pre facelift so it was very useful info