Any recommendations for exterior performance mods for the Infiniti Q50 Black Opal Edition?

Ive been driving my Black Opal Edition for about six months now and honestly Im just getting so frustrated with the lack of high-quality exterior stuff that actually does something. Most of what I see online is just cheap carbon fiber stick-ons from eBay that look like theyll fly off the second I hit 80 on the freeway and its driving me crazy. I spent a premium on this specific paint job because the way it shifts from purple to blue to green is incredible but now I feel stuck because I want to actually improve the cars performance and I cant find anything that fits the vibe or the quality of the Red Sport factory trim.

Im planning on taking it out to a track day near Riverside next month and Im really worried about high-speed stability. The front end feels a bit floaty when Im pushing it and it makes me nervous. I looked into some splitters but they all require drilling into the bumper and honestly Im terrified of messing up the Opal finish or having the color clash with some low-grade resin. I have about $3,500 set aside for some functional aero-maybe a real rear diffuser or a functional front splitter-but everything I find looks like it was made for a base model 3.0t and not the special edition. Its like the aftermarket just forgot this version exists.

Does anyone actually make performance-oriented exterior parts that dont look like total junk? I need something that actually manages airflow and maybe helps with brake cooling because the heat soak is already starting to annoy me. It feels like every performance mod for the Q50 is just for show and its honestly making me want to just trade it in for something with a better aftermarket scene even though I love this engine. If anyone has found a company that does real R&D on their aero kits and maybe offers stuff that matches the dark chrome or at least doesnt look cheap against the opal paint let me know...