Will the Pre-FL diffuser fit my FL 2019 Coupe?
Thread Starter
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Joined: Nov 2021
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From: FL
C63S
Will the Pre-FL diffuser fit my FL 2019 Coupe?
Hello, so let me explain.
I was interested in getting a PSM Dynamic diffuser for my 2019 C63s. My car has the facelift diffuser. The way the PSM diffuser attaches is via the old diffuser. Would I be able to purchase the pre FL diffuser and install it on my car with no difficulties? It will be a retrofit correct? As the bumper hasn’t changed between the FL models. After I install the OEM pre-FL diffuser, I plan on installing the PSM diffuser onto it.
this should work, correct?
I was interested in getting a PSM Dynamic diffuser for my 2019 C63s. My car has the facelift diffuser. The way the PSM diffuser attaches is via the old diffuser. Would I be able to purchase the pre FL diffuser and install it on my car with no difficulties? It will be a retrofit correct? As the bumper hasn’t changed between the FL models. After I install the OEM pre-FL diffuser, I plan on installing the PSM diffuser onto it.
this should work, correct?
Member
Joined: Aug 2019
Posts: 193
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C63 AMG
Ok, I've tested this out because I do have the PSM rear diffuser for the coupe. If you are buying the one for the coupe with the 2 fins on the side, it can work but you'll have small gaps. You can fill the gaps with either dynaflex sealer or use that rubber material they use on wide body kits. It can be done, there's even pictures of it on the facelift diffuser (look for nervo.d on instagram).
Thread Starter
Junior Member
Joined: Nov 2021
Posts: 58
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From: FL
C63S
Ok, I've tested this out because I do have the PSM rear diffuser for the coupe. If you are buying the one for the coupe with the 2 fins on the side, it can work but you'll have small gaps. You can fill the gaps with either dynaflex sealer or use that rubber material they use on wide body kits. It can be done, there's even pictures of it on the facelift diffuser (look for nervo.d on instagram).
Also, would you recommend I use the Pre-FL or the FL diffuser? Which has better fitment?
Last edited by StormHawk; Jun 28, 2022 at 06:15 PM.
Member
Joined: Aug 2019
Posts: 193
Likes: 31
C63 AMG
If you have the prefacelift diffuser, that's the one it was made for. The reason it would have gaps, is if you were to install it io the facelift diffuser. I originally had it on my prefacelift, but I took it off when I updated my car to the facelift.
Thread Starter
Junior Member
Joined: Nov 2021
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From: FL
C63S
Okay, perfect. To clarify, I can put the Pre-FL diffuser on my FL C63s?
Member
Joined: Aug 2019
Posts: 193
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C63 AMG
Hmmm, when I converted my pre-facelift to facelift, the diffuser came with a some plastic bracket to support the wires behind the diffuser. I think when you get the diffuser, it comes with the bracket. Keep in mind, the facelift mufflers will not fit the pre facelift because they are bigger. You can mess around with a dremel tool but I wouldn't do it myself. Also there might be some fitment issues if you get a cheap aliexpress or ebay carbon version since they don't bend like abs plastic.
Thread Starter
Junior Member
Joined: Nov 2021
Posts: 58
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From: FL
C63S
Hmmm, when I converted my pre-facelift to facelift, the diffuser came with a some plastic bracket to support the wires behind the diffuser. I think when you get the diffuser, it comes with the bracket. Keep in mind, the facelift mufflers will not fit the pre facelift because they are bigger. You can mess around with a dremel tool but I wouldn't do it myself. Also there might be some fitment issues if you get a cheap aliexpress or ebay carbon version since they don't bend like abs plastic.
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Member
Joined: Aug 2019
Posts: 193
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C63 AMG
It would be in the middle where the fins are. My pre facelift had some minor gaps too, but I just used dynaflex to seal it off. On the facelift, the gap is more noticeable but I'm sure you can just use more dynaflex or that rubber material I mentioned earlier.
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