When the BMW M3 (G80) and M4 (G82) was released into the wild, one of the biggest features to grab the attention of the crowd was the impressive collection of Carbon Fibre M-Performance parts, in particular the Flow-Through Rear Wing / Spoiler.

Having developed our own version of this part we’ve been steadily increasing the amount being shipped out and also installing down here at our HQ.

With this in mind, we thought it might be something quite special to retrofit this spoiler on to the older generation BMW M3 (F80) and BMW M4 (F82) as per the factory spec using the proper genuine mounting system rather than bonding!

We floated this to one of our very good customers, Rob who has had a lot of work done to his BMW M4 F82 who we knew would be rather keen for this upgrade, and he was!

Rob drove down and we set to work. As well as filming some of the work, we thought it’s a perfect time to do a quick write up on the process!

Before any vehicle hits the workshop we will always do a quick walk-round to note down any damage, marks, dings or dents and to make the owner aware.

Depending on the condition of the vehicle we will sometimes give the vehicle a quick maintenance wash to ensure we’re working on a clean vehicle to give us a good working area and to prevent any loose dirty from marking or getting in the way.

With the vehicle in the workshop, we’ll lift it into the area and wrap the big surface areas in our special blue wrap again to prevent any potential marking or rubbing on the bigger panels.

On this M4 F82 we start off with needing to remove the existing carbon fibre boot lip spoiler. This is done using a mixture of subtle heat and a high tensile line (Think cheese wire for cars) to help us cut through the older glue or double sided tape.

Once the old spoiler is off the boot lip we remove the existing adhesive with a Tar & Glue remover that breaks down the sticky!

With this gone we’ll quickly polish the boot lid with a machine polisher and a specialist compound to make it look as good as possible!

As we’re fitting this wing with the Genuine Fitting kit from BMW for the G82 we take the drill template and make it work up against the F82 Fibre Glass Boot and then take what feels like 100s of different measurements to ensure we know where the brackets will end up!

When we’re happy with the fitment, the painful task of drilling and cutting the boot comes, not just for the mounting holes but also for the retaining brackets that clamp against the tailgate.

As these metal brackets are designed for the G8X platform they have to be re-manufactured to fit as well as cutting and drilling the interior of the boot so they can be secured behind the scenes.

This is a pretty important step (With no instructions) to ensure that the spoiler is secure and won’t just fly off at the merest hint of any speed.

With all the appropriate cutting done, we then need to get our trusty rivnut tool out to attach some fixings for the bracket to secure into the tailgate itself.

With the brackets bolted in place it’s time to secure the wing in it’s final resting place which is a two man job to not only hold in place to secure but also to allow for a finer adjustment.

Once the wing is in place it’s a final quick wipe down and we can all stand back and enjoy the final result which is a G8X Spoiler installed on to a BMW M4 F82!

Remember now we’ve done the M4 F82, we’ll be able to offer this for the M3 F80 also using the Genuine Fitting Kit.

This installation can only be done at our workshop here in Poole and takes approximately 4-5 hours.

If you fancy more of a visual feast then check out the video below:

Update for 2024!

Having completed a few of these installs now we decided it was time to make this a more serious retrofit and create a full fitting kit and How-To Video. Taking inspiration from various other fitting kits on the market we research, designed and fabricated our own specific fitting kit to give it more strength and having to modify a G8X kit.

You can find out more about this kit here – https://carbonwurks.com/product/bmw-m4-f82-g82-style-carbon-fibre-rear-spoiler-retrofit/