[BM Creeper]

Originally Posted by Stef

OK. I just did it. My advice is: pull hard! and do not be afraid.

It took me (I did time it) 22 minutes from start to finish, not a second more.

As you pull on the diffuser, the bumper will bend, but I was never afraid it was going to break, and I did not pull "as hard as I could" and I did not "almost fall backwards".

You just pull, and it comes out. That's it. No worride to break anything. The bump bends as you pull, but that is what it is supposed to to: flex and bend.

The CF diffuser snapped right in, and I could not be happier!

Why pro installers have a hard time doing this? I cannot understand (at least the removing part, installing the new diffuser might be harder depending on the one you bought...)

Can you share where you bought it from ?
Are you all going genuine M-Performance parts or are you going IND, e-bay, Alibaba and the likes ?

[Peasley]

Pull hard, they said. Nothing will break, they said...

[Dogs63]

Did this today and here's my take...

What a ROYAL P I T A!!!

Bolts and push pins were nothing, obviously.
The ends of the stock diffuser came out fairly easily.
I tried the pry tool method on the middle tabs with little success.
It came down to wiggling and muscling the OEM unit out.
I'm not a dandy, but my hands sure paid the price. And, I feel certain there was some minor damage to the female lip of the bumper where the tabs go.
The M Performance C/F diffuser (thanks SunMotorsBMW) went in without a hitch - except for one tab. Had to reach my arm around and over the exhaust to push from the back side. WE HAVE ENGAGEMENT!!
In the end, the new unit fits perfectly and looks great.
Glad I tackled the job and always enjoy the challenge of doing things myself.
Good Luck!!

[ryem3]

Yep, definitely a hard job. I think it's important to note the where the notches are on the tabs. I filed down a couple carbon tabs to make them go in more easily.

[eatingpizzainthef87rules]

Not sure why people stuggle with this so much

Removed my stock piece in 10 min max with 0 issues or damage - longest part was taking out the pop rivets

Install was super easy MPerf diffuser was back on in 4-5 min

Was my first time also

[Peasley]

Originally Posted by eatingpizzainthef87rules

Not sure why people stuggle with this so much

Removed my stock piece in 10 min max with 0 issues or damage - longest part was taking out the pop rivets

Install was super easy MPerf diffuser was back on in 4-5 min

Was my first time also

You're a better man than me, that's all I can say. 10 mins was all it took me but not without causing catastrophic damage to the stock diffuser and my hands.

[eatingpizzainthef87rules]

The key is to place one hand on the bumper and then do a very quick sharp yank motion directly towards you on the stock diffuser at the tab areas - that will pop the tabs out safely - no need for pry tools or anything

Slowly pulling and prying flexes the plastic / urathane and causes cracks / tears the stock parts although at the surface seems like the safer way to do it by going slow - it’s more likely to cause damage 🤙🏻

[Protatomonster]

Originally Posted by Ryan@IND

BMW F87 M2 M Performance Diffuser DIY

Tools Needed:

8mm Socket
Extension
Ratchet
Pry tool for push rivets

Step 1:
Remove the two 8mm screws on each end. These will be reused with the new diffuser.

Step 2:
Remove the six pop rivets using a pry tool. These will be reused with the new diffuser.

Step 3:
Start on either the right or left side by pulling on the diffuser to release the tabs. The ends come out with ease whereas the center section will need a good amount of force to release the tabs that hold it in place.

Step 4:
Press the M performance diffuser in. On our car we found that the ends clip in place easily, but the center took some effort to ensure the clips engaged. I found that pressing on the inside of the bumper while pressing from the diffuser simultaneously made it easier.

Step 5:
Press the six pop rivets back into place.

Step 6:
Screw the two 8mm back into place.

Theres a place local to me that allows me to rent out a hydraulic car lift for only $15 an hour, wondering if it's worth it to do that while I install the Diffuser, Side Skirt, and Front splitter. Do you think it's worth doing that to make it a bit easier or should it be easy enough with just a car ramp I purchase from walmart? Also I'm assuming this is similar instructions to what I'll need to do on my M2 Competition?

[BM Creeper]

Originally Posted by djknucklez1

I removed the 4 center tabs by first removing the bottom screws from the inside middle part of the heat shield, inserting my hand through inside diffuser and using a flat heat screwdriver to push the 4 center clips down, while pulling the diffuser away from the outside. These 4 center tabs were near impossible to take out. There is absolutely no way to take it off by simply pulling from the outside without breaking anything.

I followed your advice !
Of course it takes 5 more minutes for opening that shield but working from the inside gave me the security I was looking for. I didn't want/dare pulling blindly on the stock diffuser and ending up with a broken tab or a damaged diffuser. By doing that it took me 15 minutes all together but without any brute force. Just gentle traction while pulling down the tabs from the inside with a screw driver.

[chief1richard]

Originally Posted by BM Creeper

I followed your advice !
Of course it takes 5 more minutes for opening that shield but working from the inside gave me the security I was looking for. I didn't want/dare pulling blindly on the stock diffuser and ending up with a broken tab or a damaged diffuser. By doing that it took me 15 minutes all together but without any brute force. Just gentle traction while pulling down the tabs from the inside with a screw driver.

Broke mine in half trying to remove diffuser. Did mine when it was cold out. Plastic was very brittle. If I were to do again, wait for warmer temps and remove heat shield to work on tabs from back.

[DanG]

Originally Posted by chief1richard

Broke mine in half trying to remove diffuser. Did mine when it was cold out. Plastic was very brittle. If I were to do again, wait for warmer temps and remove heat shield to work on tabs from back.

I wouldn’t worry about it. I threw my OEM diffuse away. Not much in the way of resale of the OEM product.

[sobek305]

Originally Posted by DanG

I wouldn’t worry about it. I threw my OEM diffuse away. Not much in the way of resale of the OEM product.

Nope, but you can always resell the carbon fiber one if you get rid of the car and intake the original...not a big deal as I saw one for $35 in the classifieds lol

[Mike0105]

I put mine on last night and I didn’t think it was to bad. I used plastic trim removal tools to release the clips which made t a lot easier.
Mike

[LuvMyE92]

Great pictures, diagrams and descriptions, thanks everyone! When I get some spare money, this will likely be my next upgrade.

[pz619]

Just finished installing. Oddly enough, not much of a problem removing, just took a bit of force. Installing was a bit more difficult as the driver side really didn’t want to go in. Eventually got it though.

Found the 2 extra pieces that fell out after I pulled the stock diffuser out. Any idea what those are for? Like everyone, left them out. Assuming this is fine.

[xxyion]

Are these instructions going to be same for the M2 COmpetition? I assume yes

[IND-Distribution]

Originally Posted by xxyion

Are these instructions going to be same for the M2 COmpetition? I assume yes

Yes.

[bmwm1]

Does anyone have the left plastic clip available that you removed. My stock diffuser lost the left one and now is loose without it.

[3t3p]

Don't need those plastic bits

[EDWYER]

Originally Posted by Mike0105

I put mine on last night and I didn’t think it was to bad. I used plastic trim removal tools to release the clips which made t a lot easier.
Mike

Pic?

[toni8284]

Try to install the BMW CF diffuser on my M2C, the tabs wont go in no matter what angle I tried... Spent 2 hours still cant them push in... Should I ask my dealer to install it? Any other tips?

[tully24]

Fitted tonight. About 20 mins, the centre studs are a little tough but worked outsides in and it wasn’t so tough. Juts a tug as close to each one as possible. New one went on very easily, but you do need to give it a firm push, again working outside ones in. Well happy with the results!