SL55/63/65/R230 AMG: Mercedes-Benz SL55 AMG Big Fin Rear Diffuser
I know some people here don’t appreciate new members posting anything too soon. However, I have now been looking for this items for months and yes I have looked this forum thin. It is like it doesn’t exist anymore and this is basically my last resort. Hopefully someone can assist.
Please see attached picture of the rear diffuser in question below. I could be open to the SL63 conversion as an absolutely last resort if anyone knows any decent manufactures except for MB of course.
Thanks in advance!!
And by the way, post away! Everyone here has been really cool and helpful to me. Now the e-class board is full of really sensitive nerds... which is to be expected.

Yeah I have seen the eBay ones, but they don’t look half as good anymore. (In my opinion anyway). I know some people might prefer the more subtle look. However, could you share the eBay seller you purchased yours from. Think they all come from the same place in Taiwan, but yours do seem to have larger fins than others. At least on the pictures they provide.
To be honest I just don’t think you can get them anymore. Probably no market for it (small). I have been on to several aftermarket manufacturers that use to do them and even others. Non of them have them anymore and the others never did.
I am considering to go to a body shop and just have a custom made one. Otherwise, to buy an eBay one and get a body shop to extend the fins and then re dip the bumper in carbon fiber look. They are rarely real CF anyways and when they are the quality is rubbish.
Thanks again guys, I appreciate!!
I know some people here don’t appreciate new members posting anything too soon. However, I have now been looking for this items for months and yes I have looked this forum thin. It is like it doesn’t exist anymore and this is basically my last resort. Hopefully someone can assist.
Please see attached picture of the rear diffuser in question below. I could be open to the SL63 conversion as an absolutely last resort if anyone knows any decent manufactures except for MB of course.
Thanks in advance!!

Regarding your last point, what about this: Aftermarket Bumper Cover w/ Diffuser
Or, for an OE fit, maybe see if the lower trim can be separated and replaced with a diffuser: OE Bumper Cover + CF Diffuser
Thank you a lot for your input, it does look like it’s some nice parts. unfortunately they don’t seem to be sending the full bumper to the UK anyways.
I was just hoping someone could send me the right link or had one lying around somewhere. I guess that was just wishful thinking.




Last edited by cnterline; Mar 20, 2020 at 06:41 AM.
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This looks like it, but matte black. You could probably get it hydrodipped or vinyl wrapped.
diffuser
diffuser 2
diffuser
diffuser 2
I know some people here don’t appreciate new members posting anything too soon. However, I have now been looking for this items for months and yes I have looked this forum thin. It is like it doesn’t exist anymore and this is basically my last resort. Hopefully someone can assist.
Please see attached picture of the rear diffuser in question below. I could be open to the SL63 conversion as an absolutely last resort if anyone knows any decent manufactures except for MB of course.
Thanks in advance!!
Sorry, I misspelled your name in my previous post. But, i thought you would be interested to know that I found this on eBay -
eBay item number: 162664377056 - "For Mercedes-Benz SL55 AMG Pre-Facelift Only BIG FIN's Style Matte BLK Diffuser"
this looks pretty close to the CF version and if it fits, I may just jizz all over myself, considering how much of a search I've conducted. there is one left because I bought the other one. if the seller is a piece of isht, I will contact eBay and get my money back. I've done this before so I'm not concerned. Hopefully, the seller is an honest God-fearing family man and if he's not, then COVID will eat him alive anyway so it's all good!
I know some people here don’t appreciate new members posting anything too soon. However, I have now been looking for this items for months and yes I have looked this forum thin. It is like it doesn’t exist anymore and this is basically my last resort. Hopefully someone can assist.
Please see attached picture of the rear diffuser in question below. I could be open to the SL63 conversion as an absolutely last resort if anyone knows any decent manufactures except for MB of course.
Thanks in advance!!
Sorry I haven´t seen this before now. Haha. You had me laughing there with your second message then!
Yes I believe it has now become available again. Not sure if you actually managed to get one. Otherwise FisherFast can most likely help you source it as he fitted one to his recent build.
Let me know if you were successful. Just seen your PM as well and again sorry I never responded sooner as I never saw it and don´t come on here regularly.








