WTB: Piecha Rear Diffuser
Member
Joined: Sep 2015
Posts: 75
Likes: 3
ecoupe
I'll just write it here for others to see.
First you'll remove the exhaust tips connected to the bumper. Then you remove the OEM diffuser. Then you'll cut off the 2 flaps the held your old diffuser. I used a handheld jigsaw. Careful not to scratch the bumper above. Tape off if you'd like.
Then attach the new diffuser using the same tabs. There will be two bolts underneath that you will attach the new diffuser to. You will have to drill your own holes if there aren't any there already. I used the same plastic nuts already on there but upside down. The sides will need to be attached with smaller screws. That should be the extent of it.
First you'll remove the exhaust tips connected to the bumper. Then you remove the OEM diffuser. Then you'll cut off the 2 flaps the held your old diffuser. I used a handheld jigsaw. Careful not to scratch the bumper above. Tape off if you'd like.
Then attach the new diffuser using the same tabs. There will be two bolts underneath that you will attach the new diffuser to. You will have to drill your own holes if there aren't any there already. I used the same plastic nuts already on there but upside down. The sides will need to be attached with smaller screws. That should be the extent of it.
how far did you have to cut off from the bumper ? I just took off the diffuser and found this piecha one wouldn't fit with this.
Thread Starter
Senior Member
Joined: Feb 2004
Posts: 422
Likes: 10
From: Central Jersey
2011 E550 Cab & 2015 ML400
The outer ones are small screws of my own. The inside ones connected to large bolts already on the car. If you posted pictures of what you're working with, I may be better able to assist you.
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Joined: Sep 2015
Posts: 75
Likes: 3
ecoupe
