I am probably going to do the M6 bushing as you mention just need to make sure I’m dead center. As for the bracket gasket it comes with one that has double sided tape that seals to the trunk. My Detailer washed it prior to PPF and no leaks so far. As for the Install my process was as follows...
I am satisfied with the quality, as for the resin finish for me the end plates had some waves not too bad that I had my detail guy smooth out before PPF. Brackets are beautiful, gloss black no issues there. Fitment is spot on and I had no issues installing. Some differences I have noticed as...
I have the FFP CFTP wing installed on my car. I do not see any drain holes. I will take some pics tomorrow and pour a bottle of water on it to confirm.
I have the Borla system. It is deeper and more refined IMHO. Quiet mode is surprisingly just as quiet if not quieter. Track mode is louder but again it is a deeper tone and more refined then the stock exhaust. You cannot tell the difference on YT videos you have to hear in person.
https://www.s550euros.com/products/18-taillight-carbon-style-overlay
you could always add these to toe in the lights with the deck lid. not sure of the quality but it the CF deck lid is a nice piece and as you add a CF diffuser it will tie in more
Selling from my 2020 GT350.
LU47 Injectors -$180 shipped
All parts are in excellent shape
If you are local pick up is available in SOCAL 91709 Chino Hills