[c1pher]

Originally Posted by rons e92

My OEM carbon rear diffuser is definitely not CFRP. It's full pre-preg carbon fiber. Take a look at the back if you ever get a chance.

More than likely, you’ll be seeing my rear, not the other way around.

[c1pher]

Originally Posted by rons e92

My OEM carbon rear diffuser is definitely not CFRP. It's full pre-preg carbon fiber. Take a look at the back if you ever get a chance.

Just looking it up, it appear prepreg is really the same stuff (polymer resin) injected into a mold if I’m understanding correctly….so still plastic with carbon fibers…..

https://xxiituning.com/pages/the-pro...g-carbon-fiber

[M2siast]

Originally Posted by c1pher

More than likely, you’ll be seeing my rear, not the other way around.

Are you a baboon? Hope you didn’t spec out the carbon seats!!!

[c1pher]

Originally Posted by M2siast

Are you a baboon? Hope you didn’t spec out the carbon seats!!!

No, silver back though. I did not spec them.

[kyrix1st]

I've seen similar damage before with my E36 M3. It happens due to pulling high lateral Gs and the stock "hangars" leaning too much to keep the exhaust dead center. Interesting how the whole thing just falls apart on the M2 though, must be poor material and design overall.

[aerobod]

Originally Posted by kyrix1st

I've seen similar damage before with my E36 M3. It happens due to pulling high lateral Gs and the stock "hangars" leaning too much to keep the exhaust dead center. Interesting how the whole thing just falls apart on the M2 though, must be poor material and design overall.

If that was the case on the G87, it would do the same on the other side, as the exhaust system is a single lateral box with 4 tips. There would also likely be some of the outer part of the diffuser still attached with the middle bit melted. I think the outer part of the diffuser somehow became detached before contacting the exhaust, likely through mechanical damage. Any thermoplastic of the type used for the diffuser would melt if contacting the exhaust, irrespective of quality.

[1stM]

Originally Posted by aerobod

There would also likely be some of the outer part of the diffuser still attached with the middle bit melted. I think the outer part of the diffuser somehow became detached before contacting the exhaust, likely through mechanical damage.

I think the same. The outer clips of diffuser came unclip and bounced up/down contacting the exhaust.